Caulk Edge
If you need to get the perfect edge to updated caulk, you should seriously grab a roll of painter's tape. It won't damage your walls, and it will be perfect for making a clean line. For the perfectionist in all of us, this invention is a must-have.
Soap Hole
Don't have any white crayons laying around? Another option for filling the holes left behind by a nail is using soap bars. Rub a little white bar overtop the hole left in the wall and it should cover up quickly. An added bonus is that your walls smell great too!