There is a website I go to (almost) every day when I’m in the shop. A website with the most important and useful woodworking insights. Truly, it is an indispensable resource for my woodworking needs.
That website: http://www.carbidedepot.com/formulas-trigright.asp
A trigonometry calculator.
This is not a joke. Imagine rough cutting a board too short and only learning it after you’re trying to level the legs.
A travesty, for sure.