UPDATED 4Sep2020: There are a lot of different products and tools out there to help you create straight, even caulking joints, and I’ve tried quite a few of them. But as often happens in life, success is simpler than first meets the eye. The first part of the video above is about using household painter’s tape to mask for painting. That’s useful in itself, but the last part of this video is about using the same tape for creating perfectly neat caulking joints. Try it and you’ll love it. This simple method is guaranteed to make you look like a caulking genius.