Here's the promised follow-up to yesterday's QoD. Read it and learn from other people's mistakes! If you missed the original poll results, here's a link to the Poll Archives.
"(Once) Not buying tickets to the Rolling Stones at the MGM Grand when I had the chance. "(Every trip) Not cashing out when I'm ahead in video poker and instead playing it back down to zero – I know I shouldn't but this happens to me at least once every trip, and I'm always mad about it afterward."