I have a large kit with the emergency supplies in the garage, easily accessible from inside the house. A boo-boo kit is in a bathroom. Each car has a small but still pretty comprehensive kit, and I have one more that I carry during outdoors activities.

Trauma kits are kept with the first aid kits but in separate containers (other than the boo-boo kit). Replacing the Combat Gauze when it expires is a painful expense.

Middle Daughter very much enjoys the semi-annual Emergency Supplies Day, where she volunteers to help me go through all the gear and replace anything that's expired.