You can set up your application to request more memory from Mac OS. Follow these steps to allocate additional memory to an application program: 
By Rob Griffiths, coauthor of Mac OS X Hints, Jaguar Edition http://www.macdevcenter.com/lpt/a/3898
More Than One Clipboard
If you've spent more than about ten minutes using a Mac, you're probably familiar with the Clipboard shuffle. This dance occurs when you copy and paste more than one piece of information between the same two programs.
For example, suppose you want to copy several different sections of a Web page to your word processor. So you start in the browser, copy a paragraph, switch to the word processor, paste, return to the browser, copy the next section, return to the word processor, paste, and repeat until you've got everything you want. The reason you must go through this dizzying process, of course, is that Mac OS X has only one clipboard for storing copied items.
PTHPasteboard, an excellent freeware program, can put a quick end to the clipboard shuffle. It lets you open an unlimited number of clipboards (it starts with 20). You can even create permanent clipboards for storing bits of information that you use all the time -- your return address, driving directions to your house, your favourite Star Trek quotes, or whatever.
PTHPasteboard makes it very easy to copy any old selection to the clipboard. Instead of flipping back and forth when you need to copy and paste multiple selections, use PTHPasteboard to copy them all, then switch to your destination program and paste them all in one step.
http://www.pth.com/PTHPasteboard
SMS from your Mac
Click the BlueTooth button in the toolbar of AddressBook to connect to your cell phone, then control- (or right-) click on a mobile phone number to access the SMS messaging dialog. You can SMS anybody with a mobile phone right from your Mac.
Also, while you're connected to your BlueTooth phone, any message that comes to your phone appears on your desktop. Miss a call? A message pops up on your screen!
iMovie FAQ
http://www.danslagle.com/mac/iMovie/index.shtml
Searching, Searching
In OS X, "Search Everywhere" does not search the Trash. You can include the Trash (as well as all invisible files) in a Command-F search by first clicking the + button at the right of the first criteria line to add another line of criteria, and then selecting "Visibility" and "visible and invisible items" on that line.
Lost PDF icons

Q. Some of the icons for my pdf files in Jaguar 10.2.8 (yes, not all of them), instead of having the "adobe pdf" icon look (which opens Acrobat, when double clicked), acquired the "generic" OS X pdf icon. How can I get them to all open in Acrobat?
A. Use "Get Info" to change the default application for opening specific documents.
Highlight one of the generic .pdf files, go to File>Get Info (or command-I), expand the "Open With" triangle, select the default app to open that file from the drop down menu (a typical dialogue box will open, allowing one to navigate to the Applications folder).
There is a handy "Change All" button here that should *theoretically* force all similar files to open with the chosen application. This does not always work for every file of that type ... however, doing the same process individually on stubborn documents *usually* does the trick.
Opening a File
If a file is selected in a finder window you can hit Command-O to open the file. You can also hit Command-Down Arrow to open the file with the default application for its type. Whereas Command-Up Arrow, opens an item's enclosing folder. If you have a folder selected, Command-Down Arrow opens it.
Pesky pdf
After installing Adobe Acrobat 6.0 Professional, it automatically places an Acrobat PDF toolbar within Word and Excel. This toolbar is placed on its own, trying to close it, or going to Views -> Toolbars -> Delete only removes it until the program is next started.
There is a fix for this, thankfully. Go to: /Applications -> Microsoft Office X -> Office -> Startup. Within that folder, go into Excel and remove PDFMaker.xla. Back up one level, then go into the Word folder and remove PDFMaker.dot. Problem solved.
Make lists of items in a particular folder
Q.Is there a shareware/freeware program similar to the Windows programs, ListMaker and HTML Directory that allows you to make lists of items in a particular folder or drive?
A. Corie Slate's free File Lister (http://www.corieslate.com/projects/filelister/index.html) is much like these Windows tools, it can list all the contents of volume or folder along with each file's size, type, and path. When creating lists you can exclude aliases, folder, and items. You can also restrict the results by file size and file name.
Once you create a list, you can open a file in that list by double-clicking on it. If you save your list as an HTML file (you can save lists as plain text or HTML) the file listings are preserved as links. Clicking one of these links within your web browser opens the file's host folder and selects the file. Unlike ListMaker, File Lister doesn't include folder hierarchies within the list -- the list won't be broken down by folders and their contents.
Should you care to create a PDF file that contains a list of items in a volume or folder, drag the volume or folder to Apple's Printer Setup Utility (Panther) or Print Center (Jaguar and earlier). In the resulting Print dialog box, click the Save as PDF button. Alternatively, you can click Print and a list of the items in the volume or folder will be printed. Note that only the items at the root level of that volume or folder are saved to the PDF file or printed -- the list won't include items within folders in that volume or folder.
Speeding up Photoshop
If you use Photoshop a lot you can save yourself a little time by speeding up the program with these tips.
First, choose Photoshop > Preferences > General and change the default setting of the History States to 5. Although the feature is nice, it's one of the biggest culprits that causes the program to slow down.
While you're in the General Preference section, also deselect the Export Clipboard check box. That way, you won't be waiting for Photoshop to transfer the data to the Clipboard every time you move to another program.
If you have an external drive, you can save time by assigning it as the scratch disk. Just choose Plug-Ins & Scratch Disks from the Preferences pop-up menu and then select the disk in the First pop-up menu of the Scratch Disk section. In OS 9 you can create a RAM disk in the Memory control panel and use that, it's even faster. The max size for a RAM disk is 256MB so you'd need to have at least 512MB RAM in your Mac to consider this option.
Finally, choose Memory & Image Cache from the Preferences pop-up menu and bump the value in the Memory Usage section labeled Maximum Used By Photoshop to around 75 to 80%. Remember, Photoshop likes a lot of RAM. This RAM will, of course, be made available to other programs when you move between them.
Can't Install an Earlier System
An unfortunate downside of frequent system updates is if you somehow damage or corrupt the system files and attemp a reinstall the system may not let you go back to an earlier versionl. For example you are running OSX 10.3.1 and your system disks are the Upgrade version of 10.3. The Upgrade version of 10.3 can not be used for an install because the system shows as 10.3.1 and the 10.3 disk cannot be used on a 'newer' version of the system..."
The solution is to try moving the "MacOSXUpdate10.3.1.pkg" from /Library/Receipts to the desktop and see if running the 10.3 works now. If not, check "Mac OS X 10.3: How to Reinstall From Mac OS X Panther Upgrade CD" (http://docs.info.apple.com/article.html?artnum=25647) and "Mac OS X: How to Reinstall a Prior Version" (http://docs.info.apple.com/article.html?artnum=25404).
Select Text in pdf
It's not possible to properly copy text from multicolumned PDF files using Acrobat Reader's Text tool. When you attempt to select more than one line, the tool selects text in all columns.
To select text within a column, choose the Text tool and option-drag over the text you want to copy. This operation selects only the desired column or text and not the full range of columns.
Entourage X Compression problem
Entourage X with MacOS 10.3.x is unable to compress files using Entourage via the New Message composition window. This because Apple is shipping a new compression library with 10.3.x (version 7) and Entourage X doesn't know about it.
Aladdin, the maker of the library, has posted the old library on the Internet. You can go to [http://www.aladdinsys.com/support/techsupport/qanda.php?id=571], download, and install the software, to restore the functionality in Entourage.
iPhoto Export
The easiest way to export pictures from iPhoto is to highlight the pictures you want to export in the iPhoto window, then drag and drop them into a finder folder and that's it!
Save Disk Space, Delete the Other Languages
By default OS X installs heaps of other language files on your hard drive. You can save significant disk space by deleting them.
Although you can find such .lproj files with the Finder's Find command, you can't throw them away because you don't have the proper permissions to do so. Many of these files are owned by the root user and are forbidden to you. Thankfully, a host of free utilities can strip extraneous language files from OS X volumes.
Among them are Mike Bombich's DeLocalizer (http://software.bombich.com)
Joshua Schrier's Monolingual (http:// homepage.mac.com/jschrier/index.html), and Philippe Hupe's Youpi Optimizer (http://perso.club-internet.fr/phupe/english/YOIndex.html).
