One thing you shouldn't keep in your medicine cabinet is medicine, says Dr. Greg Lyon-Loftus with Mont Alto (Pa.) Family Practice.
Changes in heat, humidity and light can destroy the potency of pill or liquid medicines - changes that frequently occur in a bathroom, Lyon-Loftus says.
He recommends storing medicine you're keeping for a long time in the refrigerator, which sees little light and usually maintains consistent temperature and humidity.
Medicine that will be used quickly can be stored in a linen closet or the bedroom, but away from children.
When it comes to keeping a well-stocked medicine cabinet, Lyon-Loftus suggests keeping in mind the types of ailments treated at home: cuts, sprains, upset tummies, etc.