We're likely to be overnighting at a couple of places where the payment due is donation-based. What I considered reasonable....and please don't hedge here as I really need an number to budget. Is $10 per head/per day too cheap? I'm not a Rockefeller, but I want to be fair. If a giganzo breakfast is involved should it be $15?
This isn't a question of conscience, but one of economics....what is enough, what is "your a tourist" and what is "you're a lousy cheapskate"?