Quoted: One of my favorite Stickies features is the ability to make a sticky translucent. Just click on a sticky and press Command-Option-T (Translucent Window). Then you can see right through your sticky to the items behind it. This is really handy if you want to see items in Finder windows that would normally be covered by any open Stickies. To turn off the transparency (pardon me, translucency), just press the shortcut again when Stickies is active.

Quoted: Okay, you probably already know the ol’ Command-Shift-3 shortcut for taking a screen capture of your entire screen, and you may even know about Command-Shift-4, which gives you a crosshair cursor so you can choose which area of the screen you want to capture. But perhaps the coolest, most-secret hidden capture shortcut is Control-Command-Shift-3 (or 4), which, instead of creating a file on your desktop, copies the capture into your Clipboard memory, so you can paste it where you want. (I use this to paste screen captures right into Photoshop.)

Another Mac OS X RSS reader which has received great reviews.

Quoted: How to capture sophisticated screenshots, multiple-page documents, and full-motion video in Mac OS X.

Need to update this app for my new mac to get tiger compatibility. This is an awesome program, well worth the $19 they charge (even though the old version was free).