<< it is WAY TO MUCH OF A HASSLE to do that "check ID" IMO. My sister did that on a card, and it was horrible. First off, the chance of losing your CC is slim, and if you do you're only liable for the first 50 bucks, and none of the major card companies even make you pay for that. Weigh that against the annoyance of having to whip out your ID every time you buy something. not worth it at all. >>
If you already have your wallet out, it's not that difficult to flip it over and show the clerk.