Drywall – Hanging pictures/mirrors to drywalls without leaving big holes

Drywall without anchors has very little holding power. There really isn't a method to repair stripped holes in it either. You could insert a toothpick in the hole and hold it in place while you screw in the screw and the screw would hold but not with any power. You could also use a larger screw which would cut into new drywall. None of these will give you any holding power. Using an anchor of some sort is your best bet so you don't have to go through this again.

My cheap solution for small patchups, is to use a 6 or 7 inch piece of a paint stirrer stick. Smear it with wood glue or construction adhesive and center it on your hole, inside the drywall, aimed where you might want to drive your screws. A screw in the middle can be a handle.

You'll have to keep it place while it dries. If you don't care about more holes, a drywall screw on either side will work. Remove and patch when done. Predrill though, as the sticks will split. Or tie some string around the middle, and use another stick on the outside to hold it tight.