Never leave your toddler on a high place like a changing table, sofa, or kitchen counter. Don't let anyone smoke around your toddler. Always keep crib rails up and the mattress at the lowest setting. Change to a toddler bed if he climbs out of the crib. Keep plastic bags, balloons, safety pins, and small objects that can fit through a toilet paper roll away from your toddler.
Toddlers are curious.
Lock up your guns and bullets separately. Your toddler is becoming independent and may run away from you when you aren't looking. Watch your toddler carefully. Keep medicines, poisons, and sharp objects locked up. Use gates by stairs and review the Home Safety Checklist.