I agree with the above. It is real nice being over 62 and can stay in Corp of Engineer Parks at half price with the national Park pass. Also some National Forest campgrounds have electric hookups and with the national Park pass. Next comes Passport America. You can usually find a park for about $20 or a little less. Many cities and counties also have low priced campgrounds that are nice. I do check campground reviews on all parks before staying. Back in the day, I also wanted to stay at Walmart, but for me I found them too noisy to get a good night sleep. Enjoy camping