I'm all for saving money, and there are times when a cheaper product will do the job. But cheap masking tape is no bargain. If you're going to all the trouble of masking, you want tape that will seal tightly to the surface and come off easily. But there's no single type of tape that will work in every circumstance. For general masking, I like the Scotch-Blue No. 2090. There are two versions: one for standard masking, and one with less adhesion for masking over delicate surfaces. You can leave these on for up to 14 days. You can also use the blue tape on window glass. The adhesive will withstand ultraviolet light without baking onto the glass. Scotch No. 2060 is extra sticky and works well for textured surfaces like stucco and brick. If you're only going to buy one width, get 1-1/2-in.-wide tape. It's about perfect for most tasks.