A couple of Carlyle wrenches in 26mm and 27mm. A Pferd file card that is long overdue. And a tool of a different kind. I decided to upgrade to a newer GPS with an integrated dashcam. Unfortunately it's needed. Kinda funny on the GPS part though. I don't really use it. I prefer going off of memory/experience and a Road Atlas. The live traffic updates can be helpful on occasion though. Otherwise I prefer to keep it old school. Plenty of ways to get around if you don't limit yourself to the interstates.
Haven't used my GPS in ages, but do use the Google Maps app (Android phone).
The app is good, because it'll warn you about traffic, find detours, etc. You can choose to avoid highways and tolls.
It's not great at choosing (or remembering) local shortcuts, so I often just start driving away from its suggested route until it figures out what I'm doing, and stops trying to make me turn back to the route it picked for me.
I mainly stopped using the GPS because its map database was outdated (and either not upgradeable, or not for free).
Backup cameras would be nice for a few of my vehicles.
And, I really should invest in a trucker / RV GPS to keep me away from low overpasses with the RV...
Mike