Last year I started paying it forward when I'm at the Costa drive through getting a coffee. Grant you, I do check how much the car behind me is spending in case the order is massive and beyond my ability to pay for it, but usually it's just one or two drinks. I get so excited every time I do that because it is such a small gesture but it's likely to make the recipient smile. I've never had it done to me but I find that paying it forward with coffee has such a huge 'return' that I'm disappointed when there isn't a car behind me queuing to order at Costa. But when I do do it, I always drive away with a smile myself. Anyone else?