I have a safe that has turned out to be 90% ammo cans or so. I keep either trading one kind of ammo for another or finding a great deal I can't pass up (even on calibers I don't have but plan on having some day). Then I feel like I have to organize it as best I can in the space I have right away. It's not like I have so much that I can't keep track of it but there is something very satisfying about reorganizing things to get ready for my next trip out shooting. Anyone else get that itch?