Places to fill with fresh water and clever ways to fill ..

Years ago we had a small Class C with a 28 gallon fresh tank. We sometimes asked at small town convenient or mom & pop stores if we could pay to fill our water tank from their outside faucet. Only a few said no, and even fewer accepted any payment. Of those that did accept payment, $5 was typical. My favorite was a store manager that requested $5, and when I handed it to him promptly stuffed it into a collection jar for a local family that has been burned out.