Well, we've all done this

This happens to everyone. I mean, it can be as simple as a quick trip to the grocery store, and you end up buying a few things not on the list. But when it happens to you, the severity always seems worse than when you hear it from someone else.
This weekend, I did a bit of shopping, and I went to Old Navy. I just went for one thing-I needed to pick up a pair of flip-flops. One tiny pair of flip-flops, because I was wearing some Nike's that day, and my feet were too hot. When we walked in, we saw signs all over the place saying something about celebrating a 15 birthday or something, which I didn't even pay attention to. We walked about, trying to find where the shoes were, and I started to glance at clothing. I realized that about everything in the store was some variation of 15 dollars. It was either 15 bucks or 2 for 15, that sort of thing, and holy cow, those are some good prices. I was finding so much, it was ridiculous. And of course, its all winter stuff, which just makes sense to buy at these prices! I kept loading things up, pretty soon, my arms were hurting from all those dang hangers.
Finally, I had to tell myself to stop. It was too much-I needed to take myself away from the situation. I dragged myself up to the register, and got the final tally. What was supposed to be a simple trip to the Navy to pick up a pair of 'flops ended up a shopping spree that cost me upwards of 80 bucks! I couldn't believe it. I told myself that it was ok, it would all be needed, etc, but all I could think about was holy crap, that's a giant chunk of change I spent.
So really, this isn't all that bad, and luckily, I stopped before it got really steep. I'm just here as an example for everyone. If you want to keep your spending in check, make sure you stick to the list you have. And if you do stray, realize that once your hands can't hold your items of purchase, you might have gone overboard.