I think it means they come with a money clip for you to put your cards and cash in.

I'd pay for better questions on writer's block.

No seriously, I'd use it for everything. Guys have it so much worse than girls. Y'all have purses for your stuff. But we have a wallet, keys, and a phone. That's it. Put anything else in those pockets and it's a nightmare. Try walking around with a wallet, keys, phone, and hand sanitizer. It's ridiculously bulky. Plus the keys and phone can't go in the same pocket, because then your phone gets all scratched. So I'd have a phone and keys and that's all I'd need! Can you imagine how pissed off the plastic companies will be when this technology finally takes effect? All those credit cards they no longer get to make.