CheatKeys - View Windows keyboard shortcuts in the current application.
Swatches - A fun and accurate color picker for the real world
KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.
ColorSnapper - The missing color picker for Mac.
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation
Sketch Palettes - Sketch plugin to save and load colors into the color picker