I <3 USE Credit Union

My credit union is trying to encourage me to use their credit card more often, so they offered me a $20 bonus for spending $100 on my credit card in 5 or more transactions within the next 2-3 months.  If you think like an investor, that's a huge 20% return, all for using their card.  Who doesn't spend $100 on a credit card over a few months?