Stretch - Uber for limousines (but it's free)
KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.
Lyft Line - Shared rides along shared routes, priced for daily use
CheatKeys - View Windows keyboard shortcuts in the current application.
Uber without Internet - Order Uber when you have no internet
cheat - Cheat allows you to create and view interactive cheatsheets on the command-line.