Caffeinated chewing gum
Notes
Caffeinated gum is a great way to store and use caffeine. It is moderately common as zombie loot, so be sure to check corpses for it. One or two pieces is usually sufficient to receive the caffeine bonus effects for a short period. The boost from caffeine is helpful in many situations, especially for installing CBMs, as caffeine can slightly boost intelligence. The other effects can be useful while out looting, so it may be a good idea to carry ten to twenty pieces of gum so you can keep gaining the caffeine effects as they dissipate.