Meazure - What are the dimensions of that image? How big is this window?
Tribe of Mentors - Short life advice from the best in the world, by Tim Ferriss
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
MentorCruise - Personalized mentorship experiences
On-Screen Ruler - lightweight, free, semi-transparent ruler
Frontend Mentor - Supercharge your front-end skills by building in a real-life workflow. Solve real-world HTML, CSS and JavaScript challenges whilst working to professional quality designs.