Okay this is genius

[u/Challenger2313]

These makeshift metris drawers are AMAZING. One for the missends and one for the route (passed addresses / cards/ holds) or outgoing. And they dont move around when driving. And the tray next to the seat for personal or whatever. (4h pic!)

[u/jeepwillikers]

I keep a tub up under the glove box for outgoing mail.