With a little ingenuity, there are various uses for Altoid boxes. This may not be ethical, but you can use an empty Altoid tin to carry around a supply of M&Ms.

Or in the sad event of your goldfish passing away, if you can't bring yourself to flush it down the toilet, you can use an Altoid tin as a coffin and bury it in the potted ficus.

Or (my favorite!) if you have enough Altoid tins (and I'm sure I do), with the tins and a roll of duct tape, you can make yourself a suit of armor.

Don Firth

P. S. With this last option, you may never actually have to engage in combat. Your adversary might simply laugh himself to death!