Well I guess my family follows a more unusual route. We are in the northeast so heat isn't as big of a problem, but we leave quite a bit in the camper between trips. Clothing (vacation-specific anyway), toiletries, food. Because of our GF / and dairy-free needs for different kids we tend to eat specific things while traveling that are not what we normally eat at home. The canned goods, rice, MW popcorn, instant coffee, hot chocolate mix, snack bars, etc. that are leftover just stay in the camper between trips. I suppose mice could be a problem but they haven't been for us yet over the last few years.
For deodorant I like the mineral sticks of potassium alum
. They work great for me and last a few years each. No scents to attract animals, nothing messy, can be left in the camper all the time. They don't work for everyone however, for some people they do pretty much nothing. Your mileage may vary.
It has the added advantage that when we use the camper for an unplanned outing we end up have snacks available should they be needed.
I am still bothered by our propane fridge and how long it takes to cool. Our previous RV had a compressor fridge and you could turn it on and go instantly. I would replace it but the prices and delivery times are particularly unreasonable right now.