1. Learn how to blind type. If you’re still looking down at your keyboard when typing - you are much slower than you can be. There's a bunch of websites for this. Here is one, for example.
  2. Learn Vim (or emacs). Ever since I learned VIM, I rarely touch the mouse. Editing, navigation, commenting, copying, deleting - Vim is the answer There’s a website where you can practice that too - vimgolf.com . There's also a wonderful IdeaVIM plugin that you can use in AS and IntelliJ.
  3. Learn IDE shortcuts. You can use standard ones, or assign them yourself - whatever works for you. Here are AS shortcuts .

These are the things that improved my productivity. What about you? Anything that has increased your productivity?