Compilation of useful but less obvious hotkeys so I can be less reliant on the mouse.
Chrome #
If you are working from two chrome windows side by side and need to switch back and forth.
cmd + `
Put cursor into search bar
cmd + l
Close a tab
cmd + w
Chrome Dev tools #
Web Developer tools
Command + Option + i
View Source
Command + Option + u
Chrome plugin specific #
Quick Tabs plugin - Bring up search bar
cmd + e
Vimium - Brings up markings to jump to.
shift + f
Tab Pinner
cmd + shift + x
Codewars #
Run Code
cmd + enter
Toggle between test and code editors
cmd + u
Run sample test
cmd + s
Toggle between instructions and output
cmd + i
Repl.it #
Untab back - Select code block prior.
shift + tab
Comment out lines of code after selection.
cmd + /
Mac #
Sleep
shift + ctrl + eject
Anki #
Cloze - shift + cmd + c