Well, generally it's only until the weekend.
The only one I waited more than a week or so was my new (to me) 870, because it's a bit of a drive to the nearest place that allows shotguns, and the 6.5 Carcano I had.
Bought that one as a project gun, so it was a little while for cleaning and tuning. Then a little while to get a new magazine. Then a while to track down a box of ammo for it and the stripper clips it needed.
Then the job downsized and the apartment lease came up with a rent hike, and I moved and sold it along with stuff I didn't want to truck to a new place, so I never did get to shoot it.