Keep important and emergency phone numbers posted where caregivers can see them and add them to your contacts list in your cellphone. These include the toll-free poison-control number (1-800-222-1222), your doctor's number, parents' work and cellphone numbers, neighbor's or nearby relative's number (if you need someone to watch other children in an emergency).
Make a first-aid kit and keep emergency instructions inside. Refill it as needed.
Install smoke detectors and carbon monoxide detectors.