Depends where you live I guess, but it's not a crazy thing to do and I know a lot of people who do it. I myself rarely take more than a couple thousand over a

Depends where you live I guess, but it's not a crazy thing to do and I know a lot of people who do it. I myself rarely take more than a couple thousand over a border, but mostly because I'm afraid I'll misplace it or lose my wallet or something. Seriously, you can easily spend $500 a day in San Francisco on restaurants and bars for two people, without going to anyplace really fancy.