1. A stick of Erase-A-Hole putty that'll make your walls look brand new. It'll make those dents, nail holes, and toddler-related "oopsies" disappear faster than you can say "security deposit." Plus, ...
If you apply skybox textures to a brush without using this, you will see the faint outlines of a box and they will move when you move in the world. This is used to allow the changing of skyboxes ...