New caulking will make your bathroom look fresh and new. I really like the look of new caulk, but it is a real chore to remove the old caulk and replace with new. If your caulking is starting to look old and worn, try wiping it down with hydrogen peroxide and a paper towel. Fold the paper towel in half twice, wet one of the corners with hydrogen peroxide and use your finger to work the wet paper towel corner along the caulk. I do this once a month as part of my monthly bathroom super clean, and enjoy the clean white caulk.