When we were tent camping...just starting to tent camp, we had brought along a little electric fan. Site had electric and it was MISERABLY hot and humid that week. Of course, I didn't bring enough extension cord. Guy in the next site loaned me one. Since then, I carry enough fuses for an entire campground, extension cords, rope, tarps..even a pup tent and extra tent stakes just in case someone needs something. I've actually loaned out the tarp and tent stakes.
2012 Chevy Tahoe LTZ - HD tow package
2017 Rockwood 2703WS Emerald Edition