Mac users who owned a Windows machine miss one thing from Finder: cut & paste. The move command, the possibility to cut a file from its original position and paste it in another one without the need to copy it. Mac OS X lack this feature by default.
I’ve recently stumbled upon a nice little tweak by Kapeli, moveAddict, which enables the aforementioned functionality and doesn’t get in the way. It’s available for free (1 cut at a time), but you can buy a “Pro” version which lets you move multiple files at once. Of course, the app works with the standard ⌘ + X and ⌘ + V shortcuts, but you can opt for custom ones. The app lives in the menubar, and notifies you when a file has been cut and pasted.
Free, or 5 bucks for the paid version. Useful.