Congrats on getting your new camper. Just think of all the fun you can have now outfitting and personalizing your new rig.
Here's a tip.... take absolutely everything out of your old camper and lay it all on the floor of your garage (or somewhere you can lay it out, on tables, stacked, anywhere so you can see it all). When you get the new camper, carefully go through each item and ask yourself, "Have we used this in the last 2 years? .... the last year? Will I "really" ever use it again?" If the answer is "No", then don't put it in the new camper once you get it. Don't just arbitrarily transfer everything over to the new camper. Discard what you don't use any more. Sell it, give it away, throw it in the trash, but don't put it back in the new camper.
You'll be surprised how much "stuff" you've collected you REALLY don't use or need any more!