People who have trouble turning a faucet on or remembering to turn the water off might try an automatic faucet control.
One device screws right onto the end of your kitchen or bathroom faucet (replacing the existing aerator). A small, white wand of durable, easy-to-clean plastic projects down 2.5 inches. Any contact with the wand will turn the water on. Just moving your hand away releases the pressure from the wand and the water instantly stops.
Available from the Alzheimer's Store: www.alzstore.com