I kept forgetting to write this about RAGBRAI. Every time I bought something that was $0.50 or $0.25, I gave a dollar and told the person to just give the next person theirs for free. I enjoyed so much setting up a little gift for the rider behind me- only once did I get to see who was the recipient and they were psyched!
So, I'd advise to anyone going on RAGBRAI, pay it forward! It was great fun! One guy who I gave the change to thought it was so cool he gave me free water. Instant karma. And what, over the course of the week it probably cost me $5 to do it. Oh, and I didn't have to carry all that heavy change- double bonus.