A couple years ago, I was talking to a friend and we both remarked how much the dollar-bill technology with vending machines had improved. Now, you can jam just about any dollar bill in there, and assuming it's not ripped or torn, it'll *take.* Makes perfect sense, right? Customers have money, vendors have wares, and both parties' interests are served when it gets even easier for the customers to part with said money to get said wares.
Maybe this has been around for a while now, but I just noticed the first time I'd seen a vending machine that can take twenties. It spits fives out for change...and what a great convenience for people who have yuppie food stamps from an ATM but no singles to spare.
Just when I got done taking stock of that, I saw dual drive-through lanes. Go capitalism!