What if you want to hang a shelf in a spot where there’s no stud? First, check to see if your wall is made of drywall or plaster by knocking lightly on the wall. If it sounds hollow, it’s drywall.

If you ever looked inside your dog's mouth while he was yawning or perhaps panting, you may have noticed several ridges on the roof of his mouth. Discover more about these ridges and their primary ...