Install childproof latches on all cabinets and appliances within child's reach. Buy 2 safety gates - one for each end of your staircase. Look for a model that swings open for easy adult access. The danger of sliding glass doors is not age-specific. Place colored tape or stickers to distinguish sliding glass doors from doorways.
Place sleeves on door knobs to prevent toddlers from accessing dangerous areas of the house.
Use door stops to ensure that doors can't slam shut. Keep your medicine cabinet locked. Install an anti-scald valve to your faucet or shower head and turn down the water temperature to a maximum of 120 degrees. Where It Belongs.