When caulking around a tub, start by lining both sides of the joint with masking tape. After applying a bead of caulk, run the rounded edge of an expired plastic gift card along the joint to wipe off any excess caulking. Carefully remove the tape before the caulking hardens.
Showerheads that mimic the feel of falling rain usually require additional plumbing to retrofit them to an existing shower, but AquaScape showerheads from Waterpik have an adjustable arm that connects to the existing pipe without any extra plumbing.
After years of daily use, a faucet may develop a leak around the handle when it is turned on, or drip constantly from the faucet no matter how hard you try to turn it off. Both problems can often be solved by replacing the washer and sealing the valve threads with Teflon tape.
Watch this video for some tips on how to caulk around a tub by filling the tub with water to weigh it down, then creating a guide for the new caulking by applying masking tape to the wall and the top of the tub.