Friday I was at this amazing Asian grocery store, first time there. Checking out, I put my credit card in the little box at the register and it flashed my name and email address. Odd, I've never seen a checkout machine do that before - maybe my name, but never my email address. It asked me to confirm the amount. I hit OK to pay and headed out. Then, as I'm walking out, I get two emails from the store: one thanking me for joining their shoppers' club, and the other telling me about the weekly specials.

Just putting my credit card in the machine got me onto their mailing list!

Bleh.