Mac: Playing around with settings in Terminal is a time honoured tradition amongst tinkerers, but that doesn't make any of those commands any less obtuse. M-cli is a tool that provides you with several plain language commands for common actions.
Mac: Have you somehow managed to customise your Mac's Dock to an unusable state? Or perhaps you're just longing for instant access to all that Apple software? If so, Defaults-Write points out you can get your default Dock back easily.
Time Machine is a great service for backing up your computer, and by default it doesn't use much CPU power to do it. That's great most of the time, but sometimes you need to get stuff backed up as soon as possible. Defaults-Write points out the Terminal command for doing so.
Usually, when an app crashes in OS X, you get a pop up warning from Crash Reporter in the middle of the screen. That's not always the best place for it, and if you'd prefer to have the warning in your Notification Center, Defaults-Write shows you how.