Mac tricks

To clean up the right-click context menu

/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

Some Terminal tricks

macs.about.com/od/usingyourmac/tp/terminaltricks.htm

List known disks

diskutil list

Install OSX Mavericks to a USB stick / thumb drive

www.techrepublic.com

Show hidden files

defaults write com.apple.Finder AppleShowAllFiles TRUE;\killall Finder;\say Files Revealed