Online/Offline -- Displays an image showing your online status on the IGN boards.
MU Script -- Collect user post/WUL counts, and keep track of stats. Very helpful for creating MU's, and has markup abilities.
Icon Anonymizer -- Use this if your icons can't be remotely linked (if they come up with a red X when you try to post them). It has a 10k limit, ICONS ONLY!
Icon Tester -- Test your icons in the board area on-the-fly with custom settings.
Standalone binary converter: Prompts for binary code to be replaced, and alerts the output.
ASCII to binary: Translate text to binary code. Prompts for text, then displays binary result in new window.
Linkify: Turn posted URL's into links. For those of you too lazy to copy/paste. (tested to work in safari, mozilla/firefox, and Internet Explorer)
FIX ANNOYING CAPS: Use this to tone down CAPS in posts into capitalized, normal text. (Note: somewhat buggy... but mostly decent; better than AOL-er)
QuickNote: Quick stick-it for taking personal notes for a website.