S.S.
My family always wants me to plan it as it doesn't happen unless I do. We have gone to Bear Lake where there are cabins, camping or RVs and plenty to do at the lake. We have also gone to Island Park Id. which is only 90 minutes from Yellowstone and lots to do right there too. There are huge or small cabins that are reasonable for all and the cooler weather and wildlife are great. Check out VRBO for rentals in every size. We also did condos in Park City one year so we had our own space but then swam, ate and did alpine slide together. We also did condos that were 5 bdrms each and shared them with multiple families in Jackson Hole and loved going into Teton Natl. park during the day. We also have some noncampers so we actually have never done the camping thing but when you share a cabin or condo, it is pretty economical. Have fun. We have also done Aspen grove and love it that the food is included and you really relax but it is pricey if you have some people with limits. It can cost a few thousand for a family of 5.