Don't save leftover medications. Don't assume that if you store something in a medicine cabinet it's safe from baby's reach. Examine your bathroom and see if baby can climb from the closed toilet onto the counter and get to the medicine cabinet. Add slip resistant strips to the bathtub. Make a habit of keeping the toilet lid down.
Small children can drown if they crawl into the toilet head first.
Toilet locks are available. Store razors, soaps and shampoos away from the edges of showers or tubs. Turn the hot water heater down to 120 degrees or lower to prevent scalding. Turn off water faucets tightly. Never leave a baby alone in the tub, even for a minute.