Tidy Ruler 3-in-1

The Gadgeteer is supported by readers like you! If you buy something through links on our site, we may earn an affiliate commission. Thank you! Learn more. Math was never one of my favorite subjects in school. ¬†Aside from the heavy textbook, we also had to remember to bring a plethora of additional implements: protractor, … Continue reading Tidy Ruler 3-in-1