We have semi-annual check dates on the calendar to check all first aid kits and the extra supplies in our storage room. Sometimes a first aid kit gets used, left out to be restocked and then forgotten before it gets back to it's designated place. We have road necessity first aid kits in every vehicle, master kit in house, sports first aid kits for game time (coaches love us because having coached youth, I know what all could be required and oft times we are better prepared than they are) and of course my back packing and grandmas camping first aid kits. We also maintain a quantity of non-perishables in our storage room, like boxes of bandaids, tape, sterile gauze, alcohol, mineral oil, etc.