Three Apps I recently started using with much success.
Isolator is a small menu bar application that helps you concentrate. When you’re working on a document, and don’t want to be distracted, turn on Isolator. It will cover up your desktop and all the icons on it, as well as the windows of all your other applications, so you can concentrate on the task in hand.
Do you spend a lot of time moving and zooming windows, so you can better see and work with all the content on your Mac? Instead of doing that work yourself, let Moom handle the task for you.
Command-Tab is great…if you only ever have one window open in each of your applications. With more than one window, though, it’s a hassle to find the one you want. Witch solves that problem by taking you directly to the window you want to reach.