Com : actnic : 1. There's no point measuring the depth of the drywall anchor, as the drywall is at most 1/2" in your house, and tour drilling farther than that.

2. if you hit your hands with a hammer you need to practice banging nails because you just suck at it.

3. screws, that's what predrilling is for

4. don't trust a guy that uses a mason's hammer to drive nails