The function of a storage shed is to keep the outdoor tools you need accessible. This problem is easily solved by a few organizing techniques to keep all your items in reach. By taking the time to create systems and properly store your objects, you can spend more time working on the task at hand.
Buying an outdoor storage building with a loft greatly increases storage capability, allowing you to store rarely used supplies overhead. For the exterior, build your own lean-to and attach it to the outdoor storage building to form a sheltered area for firewood.