I can believe that there are security issues with Square, and I'll keep an eye on them, but I guess I'm just not as paranoid as some of you. I haven't had a card as long as Doug, but I have had fraudulent charges made on my card before, and yes it was an annoyance but it was taken care of relatively quickly. I then updated the five places that have my card that matter. Actually, I remember being kind of relieved that I knew every place that had my card info on file, instead of there being a dozen sites out there with my card info stored.

This is only tangentially related, but I'm curious what you guys have experienced. First of all, I don't know how many of you do this, but one the back of all my cards I've always written "Please See ID" in the signature field. Do any of you do that? What has been your success rate with that? By that I meant, how many times have you actually been asked to see your ID? Sadly, for me it's been about 1 in 10 if I'm lucky. I always thank the people who ask for it.