Just curious what everyone thinks. If you are traveling and need to top up along your route and make arrangements with someone to use their HPC or NEMA 14-50 or whatever you're likely going to be using $5-6 worth of electricity and may well occupy their time, drink their coffee and eat their potato chips. I think we all agree that our mere presence probably isn't payback enough for such hospitality, but what do you do? Should you offer cash, or is that too crude and insulting? I think most/many of us wouldn't accept it. Should you keep a stash of $10 Starbucks gift cards as a thank you?