I keep a cheap Kahr PM45 in the glove box. It takes up very little room.
Yeah, I've never found things crowded with my old Rossi 2-inch .38 revolver, but I had to find SOMETHING to give them on their side of the ledger. Speaking of ledgers, the $1k price kinda obliterates that whole 'stashes a little better' thing for me. just sayin'