When you're RV trip planning for a short vacation, you aren't going to need nearly as much supplies as you would for a cross-country adventure. However, if you're accustomed to taking longer trips, it can be hard to pare back your usual packing habits. With a bit of planning, you'll be traveling lighter without missing the items you leave behind, and you'll appreciate the time you save packing and unpacking.
First, there's not much of a need to buy a case of bottled water and loads of snacks for the road if you're only going away for a few days. Instead, you can plan your meals and buy enough for those plus a few goodies to munch on while you're on the road. This way, you can save money and you won't have to worry about leftover food going bad or having to make room in your kitchen when you get home.
Downsizing is key when it comes time to pack a suitcase as well. On a longer road trip, you may want to bring along bathing suits and hiking gear in addition to your regular clothes, but you're not going to need an entire wardrobe for a shorter vacation. If you have plans to visit a fancy restaurant or you're traveling to attend a wedding, then by all means, bring along dress clothes for the occasion. If it's summertime, you won't need a winter coat, but it can be a good idea to pack a light sweater for those chilly nights.
Another area to cut back on is entertainment. Board games, books and other things you usually bring along to fight off boredom when you're on the highway for days on end will just take up space, so if you own a smaller motorhome and can use every inch, you may want to leave some of your games at home. However, if you usually stock these sorts of things in your RV, there's really no need to remove them unless you want to use the space for other things.
It can be a good idea to keep a few outfits and some non-perishable foods onboard all the time as well. This way, you're ready for RV travel as soon as the mood strikes.