'Templates'
see 'Stationery'

'Text Wrap'
see 'Claris Office Text Wrap'

'Trash'
Anything in your trash is using up Hard drive space.
The trash is not a holding bay. If you put something in it empty it. Don't forget you have two trash cans. One on the desktop and one in your emailer.

'Trash empty'
To delete locked items in the Trash, hold down the Option key and select Empty Trash from the Special menu.
see also 'Protection Files'

'Trash retrieve from'
To put everything back to where it was, select what you want to return and press Command+y

'Trash send to'
To quickly delete an object in OS 8 and above, select it and press Command+Delete. No need to physically drag it to the trash.
See 'Delete'

'Trash Warning'
Tired of the warning when emptying the Trash? Select the Trash and then press Command+I to access the Trash Info Window. Un select warn before emptying to remove the warning. ( I would not recommend this on the chance you really meant to Restart or Shut down your computer).

'Underline'
Scroll over to highlight and hold down Command+U or perform before you type the word. To revert back to plain hold down Command+T.

'Undo'
To undo what you have just performed hold down Command+Z. Be careful how you use this. You may loose everything. If you do Command+Z will restore it for you.

'Uninstalling applications'
On the Mac OS is a snap. For most intents and purposes, dragging the application's folder to the trash (and removing the application preference file) is all that is needed. If the application installed any control panels and extensions, these can be easily located and removed using the Extensions Manager.
Windows applications, on the other hand, frequently install in a multitude of places making uninstallation very difficult, hence the market for the plethora of separate uninstall programs on Windows. Even the built-in "Add/Remove Programs" doesn't work with all applications and often doesn't remove all installed components.

'Virtual Memory'
If you start the computer while holding the Command key down Virtual Memory will be disabled for that time only. Extensions and control panels will load normally subject to available RAM.

'Which Extensions and Controls at start up'
Holding the Space bar down at start-up activates most extension managers letting you choose which extensions and control panels are enabled as you start the computer.

'Zapping the PRAM'
Holding down Command+Option+P+R just after start-up will cause your computer to restart and reset the contents of the Parameter RAM. 'Zapping the PRAM" as it is known is often suggested as a fix for almost anything and everything. If you really feel a need to perform this, make Sure that the computer restarts at least three or four times before releasing the keys as one restart may not completely clear the PRAM.