I have a customer who is great!!! A single mom with two kids, trying her best to make ends meet. I have it set up with her that for X amount of candles she sells, she gets 1 candle. She loves this! Also, I let her opt for the cash. She gets the order together, she orders and I drop it off to her (she lives on my way to work) where she gives me the money. I just make sure she signs off on the invoice, and initials each scent/quantity ordered. Last time she ordered, it was for over $500 worth of candles, and usually her order runs about $250 at a time. Not bad! I think it depends on your "feel" for this customer. I'm sure you'll come up with something!