BetterTouchTool
BetterTouchTool is a great, feature packed app that allows you to configure many gestures for your Magic Mouse, Macbook Trackpad and Magic Trackpad and also Mouse Gestures for normal mice. It also allows you to configure actions for keyboard shortcuts, normal mice buttons and the Apple Remote. In addition to this it has an iOS companion App (BTT Remote) which can also be configured to control your Mac the way you want.
If you want to verify the code signature of BetterTouchTool after downloading & unzipping it, use this terminal command:
codesign -vv BetterTouchTool.app && codesign -dvvv BetterTouchTool.app
The output should contain those lines (and some more):
BetterTouchTool.app: valid on disk
BetterTouchTool.app: satisfies its Designated Requirement
Authority=Developer ID Application: Andreas Hegenberg
Authority=Developer ID Certification Authority
Authority=Apple Root CA
TeamIdentifier=DAFVSXZ82P
The last Mountain Lion (10.8) and Maverics (10.9) version (v2.05) can be downloaded here
The last Lion (10.7 ) version (v 1.922 ) can be downloaded here
The last 64bit Snow Leopard (10.6 ) version (v 0.939 ) can be downloaded here
If you are using an older 32bit Mac you’ll have to use this version: 0.785
BTT Remote
BTT Remote is a great universal iPhone/iPad app which allows you to remote control your Mac (on which the free BetterTouchTool has to be installed)
BetterSnapTool
BetterSnapTool allows you to easily manage your window positions and sizes by either dragging them to one of the screen’s corners or to the top, left or right side of the screen. This enables you to easiliy maximize your windows, position them side by side or even resize them to quarters of the screen.
KeyboardCleanTool
KeyboardCleanTool can completely disable your keyboard via mouse click, this can be very useful if you want to clean it.