JetBrains products help me understand a new codebase more efficiently, and basic use of ls and tail on unix based machines help me parse log files faster. SelfControl on mac helps me block distracting websites and Klokki helps me track my time. Bear is a great note taking app that I've mostly switched to from Evernote. I like GitHub's new Android app.
In terms of actually being a better programmer, I believe anything that helps you collect or parse information about your running code and debug it will improve your life. Sometimes that's print statements, sometimes that's a remote debugging session.
My most regularly used commands are probably `ls -lt | head -20` and `tail -f' or `tail -1000 | grep`, so maybe learning a bit about pipes too.
In terms of actually being a better programmer, I believe anything that helps you collect or parse information about your running code and debug it will improve your life. Sometimes that's print statements, sometimes that's a remote debugging session.
My most regularly used commands are probably `ls -lt | head -20` and `tail -f' or `tail -1000 | grep`, so maybe learning a bit about pipes too.