We keep both of our RVs stocked. At first we tried moving the "junk" back and forth but we never had what we wanted in the rig we were in at that time.
I have a couple of tubs, clear Rubber Maid types, in a 17 qt/16ltr, size, that I keep odds and ends in that go with my camera gear or computers. Extra batteries, chargers for cameras, cords for iphones, ipads, etc., Sleek WiFi range improver, SD chips, flash drives of different sizes, computer cables, etc. This box gets moved back and forth and in between trips it resides in my home office. The other box of the same size we keep medicines in that we don't want to leave in the heat of the RVs parked here in Florida. That box comes into the house between trips as well.
Both boxes have a specific place to live in the RVs so it is easy to see if they are on board or not. Some tools I have duplicated for both rigs but since we use the same truck for both the 5th wheel and the truck camper, most of the tools reside in the truck, such as the 12 v. air compressor, wrenches, bottle jacks, etc.
Dishes, pots and pans, bedding, remain in each RV. We move the satellite radio, from RV to RV and so far have not forgotten to switch it. Our truck camper gets most of it's use in the summer months and we normally spend about 100 nights a year out in it. The 5th wheel gets most of it's use in the winter months, as it is a campground "queen" and seldom gets too far from Florida. (two summers ago it made it to western Colorado and Utah/Arizona and back home) The 5th wheel gets used about 40 nights a year most years, Mostly up to Disney World as we take our grandsons up often as we all have annual tickets to the parks.