All my 1 ounce
ASE and Maples I keep in airtite capsules made to fit the specific coin, and in a specially fitted storage boxes for each capsule size. I know I could technically just keep them in coin tubes, or even loose (ack...), but I actually really enjoy organizing them nicely for some reason. I'm maybe a little OCD, so a poorly fitted capsule would just annoy me. Seeing my coins in capsules and neatly fitted in a box is just satisfying to look at.
For any silver bars/rounds, they're just in ammo boxes and tubes.