Trimmit
Delete junk files, clear resource forks, strip universal binaries, clean out NIBs, strip debug symbols, compress TIFFs, remove foreign languages - do all the things Apple do but third party vendors don't. Recover lots of disk free space.
The Zipper
The fastest file compression utility ever. Unobtrusize, intuitive and just plain elegant - you'll wonder how you survived without it!
DeskSaver
Let your screensaver go wild. Start it, pause it, resume it and restart it - on your Desktop.
IconGrabber
See a file with a cool icon? Drop it onto IconGrabber and save the icon as an image file.
See also: Plugins and Extensions