I use these that I get from my neighbor to ferment stuff (you can put a quart jar in them) in because it keeps it dark and I found this on the folgers site Folgers has Christmas and other holiday designs you can print and put on the canister and use the canister for gifts and a whole host of other stuff http://www.folgerscoffee.com/apps-tab/can-decorator Cheap gift wrapping
They make good painting buckets. Solvents can soak parts clean in them, and the small cans I use for hunting gear and canisters for coffee, creamer, sugar for the hunting cabin.
I store nails, wood and machine screws in them. Although, I prefer clear containers so I can see what is in them and I'm not a Folger's fan. Folgers is ground and we enjoy grinding our own. As soon as plums come in; I'll use a 5 gallon water jug to make plum wine.
I have some full of brass. My only problem with them is that they won't nest when empty. Makes storage of empty ones take up lots of space.
They are good for dismantling projects I debate as to whether it's worth fixing . all parts and screws are stored in the can and labeled ,some times they have spare parts I can use on other more important projects like switches an relays . Some things like CPU's and bread boards are unique to the same products so it's important to keep together in one package in the mean time. Until you have an organizer for batteries it's a good place to store them too. On a small boat they would make a good bailing bucket and storage for important things too. I suppose you could even store ammo in them ,and then, water proof it, taping it around the lid. Use card board to insulate between layers ,and take up shock if any. Certainly has to be better then the plastic or paper boxes the ammo comes in. How many rounds of .22 long rifle do you think will fit in that coffee container. If I were to guess I'd say about 1500.
I like saving and using nestle coffee mate containers with the screw on top better to keep things in and to seal