Polyseamseal Tub & Tile Masking Tape ($5.99) simplifies the task of caulking around tile and bathtubs. It’s three-layer design creates uniform gaps to allow for 1/4-in. or 1/8-in. beads of caulk. The tape also works for backsplashes and around interior windows and doors. Henkel Consumer Adhesives, 800-321-0253, www.polyseamseal.com