CAMPIE, we store our B+ 4 mi away where it is covered by an aluminum roof shed and on a concrete pad w/ electrical outlet for minor usage (no A/C), hence our more spontaneous usage like taking the dogs to walmart on hot Louisiana days are limited. If we had many visitors, I know I would make the RV available.
jeaniewes, I knew a guy who said a tarp just provided an incentive for wasps' nests in the hot summer...if you have property, the material and labor cost to erect an aluminum roof/wood frame pole-type awning (4 or 6 4"x4" poles with a roof) cannot be very much.