I know exactly what you mean! A few weeks ago, I stopped by a natural food market to grab some lunch... I'd already gotten stuff from the hot food bar (in takeaway containers) and had made it to the checkout before I realized that I'd taken out my driver's license and debit card that morning to put in my little hiking pack when I'd gone out walking. I had no cash and I remember standing there trying to figure out what to do. Thankfully, I realized I had a credit card stuck away in a little hidden pouch in my wallet, so I put a $5 lunch on my credit card (so very grateful that they accepted this one), feeling very silly the whole time.

But I did the same thing you did... thinking of all the things that could go wrong before I got home to retrieve the rest of my regular wallet stuff. I did, at least, have the comfort of knowing I had that one credit card and that it even happened to have my photo on it. But still... it's so disconcerting!