Glad you found it, those are worth their weight in gold!
I'm really good (bad?) about 'hiding' things where they will probably be used next. For instance, I have my stash of spare fuel filters behind the AC door on my Endeavor... right next to the filters themselves. No need to look when I'm ready to get dirty.
However, sometimes I do too good of a job at it. I had one of those remote thermometer setups in a previous coach, it had 3 separate remotes. When I sold it, I kept the base and 2 remotes but couldn't remember where I'd put the 3rd remote. However, I do know it must have been outside somewhere because of the readings.