It's amazing how people can so completely fail at basic arithmetic. When I see someone on the bench press with a 25, a 10, and two 5s on each side I want to go up and ask, "do you know what that adds up to?" Yeah, 45. That's the plate you see lying around everywhere. But no, you spend 10 minutes tracking down the smaller weights so that no one else can use them. If you've ever, say, paid cash for something you should be able to figure this out. And don't forget, using 45s also makes you look at least 37% more badass. So bust out the phone calculator and slap on a couple of show-off plates. We'll all thank you.