Jetbrains IDES with sublime text keybindings.

Second small keyboard to single press buttons for macros instead of killing my hands with weird key combos.

Multiple cursors, fuzzy search, local (not git) history, find next occurrence keybind, go to start/end of method, go to next/prev compilation error keybind, scratch files, not having the IDE lock up for no reason, JS + type hints is extremely productive and flexible in webstorm, built in web server for test HTML files...

I also like to bind the prev/next error navigation to the up/down buttons on my mouse. This makes code navigation and refactoring a breeze.