I do this. Seriously, am I so selfish that I'm going to make someone wait for me to check out my entire cart of groceries, just to buy a soda and a magazine? I've let multiple people go ahead of me. If I have a cartload and you have three items, please. Go ahead. I actually had let a couple go ahead of me last month, and they told me I restored their faith in humanity. I am never in that much of a hurry. And if it's me with one item, people generally let me go ahead. I had a lady offer to let me go ahead of her, and I flat out refused because she had THREE little kids with her that were right on the border of melt-down town. I've got kids, I know what it looks like. Yeah, I'm not in a hurry. Sometimes it's the little things. Be cool to each other.