CheatKeys - View Windows keyboard shortcuts in the current application.

Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.

KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.

RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.

cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation

Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.