If you're tired of a shower head that hangs too low and you have extra overhead clearance, install a shower head extension. (If you have to bend your head down to get the soap out of it, the shower head is too low.) Extensions are placed between the shower arm and the shower head. They come in many lengths and angles. Visit a local bath and shower supply store to find a shower extension that would work for your bathroom.
Measure the clearance between the existing shower head and the ceiling of the shower with a tape measure. This will give you an idea of how long of an extension you can get.
Cover the nut that holds the existing shower head to the shower arm with a sock.
Grip the covered nut with a pair of adjustable pliers, and turn the nut counterclockwise until it comes loose.
Untwist the shower head with your fingers, and put it in a plastic bag.
Take the shower head to a bath and shower supply store. Ask a store clerk to help you find the shower extensions. Show her the existing shower head so she can find the right-sized shower head extension pipe.
Wrap the threads of the shower arm with plumber's tape in a clockwise motion. Thread the nut-side of the new extension pipe onto the existing shower arm with your fingers. Cover it with the sock, then tighten it down with the pliers. Hold the shower head extension pipe at the angle you want it while you tighten down the nut.
Wrap the threaded end of the new extension pipe with plumber's tape. Remove the shower head from the plastic bag. Thread the shower head nut onto the threaded end of the new shower head extension pipe. Cover the nut with the sock, then tighten it down with pliers.
Plumber's tape helps prevent threads from leaking.