I have a 4-drawer Plano "tackle box" that I picked up at Bass Pro last year. It's compact and tidy, and with 4 pull-out, completely removable drawers I have one for almost every caliber group. Inside the individual drawer/boxes, the dividers allow me to separate jags, brushes, and mops. In the "AR" drawer, there's enough room for my spare bolt carrier assembly, front sight tool and broken case removal tool. The top of the master box/container has enough room for a couple of bore snakes, a sectional GI-type cleaning rod which handles .22-.45 cal, a small bottle of Hoppes No. 9, patches, Q-tips, and a few other odds & ends I think I paid about $20 for this box, and extra "drawer" boxes run about $2.50.
Next to the workbench I keep my long, fixed rifle rods on perf board hangers, and an old Hoppes metal cleaning kit box from the 60's holds the pistol rods and some random stuff.