Ours is in storage when not in use, but I do have the ability to park in front of my house for a while to pre-pack. Not having that option, I would keep as much of your gear in your camper as you possibly can. Use the plastic totes / crates from home depot or wherever for the items that you need to load into the camper before you leave on a trip. If the crates are all the same size, you can stack them in your TV when done packing. When you get home (or back to the storage lot after a trip), just reverse the process. We take an extra crate for dirty dishes.. etc that we wash when we get home in the dishwasher, etc...but if you have the time / desire, your dishes really never have to leave the camper. next time we go to storage, we put the clean dishes back in the camper. Same thing with clothes. This trip to storage is 'in between trips', and usually we just drive the car there. This 'extra trip' can be avoided, but it also gives us the opportunity to inventory what is on board, put our clean clothes back in, etc.
We have a separate set of clothes that stay in the camper all the time, unless they are at home being washed.. Dishes, cups, games, movies, some dry goods, etc. The only thing we typically need to add when we arrive at storage is our perishable food, which we pack in crates at home and have ready to go. Our storage lot is 20 miles south of town, and even though I can park in front of my house, sometimes we are pressed for time and are heading south anyway, so it makes a lot more sense for us to not have to 'fetch the camper' bring it home, pack, and then drive out, passing the same storage lot I had just visited earlier.
Only thing I would add is it's critical.. well smart anyway.. to have a list of what you have on hand in your camper - at home -. It's pretty lame to show up at your campsite to discover you've forgotten the paper towels because you 'thought' you still had some on board. We try (but often forget) to make a shopping list of things the camper is running low on, so once that particular trip is over and we get home, we know what needs to be restocked.
2016 27BHS Elite
2012 F-150 EcoBoost / Max Tow