"I should buy one of the backup mirrors."
They really are great. They beat even walkie talkies and cameras. "You" know what is going on without depending on electronics. The one I have slips over the tailgate or can be mounted to the rear window of an SUV.
Traveling alone is not always great, but camping is good, since I belong to some Single's RV groups. Starting tomorrow, there will be a couple of dozen singles gathering at a nearby state park, for instance. We will attend the state fair, a play, and do all the regular camping activities including potlucks.