I've seen a lot of people do this so decided I'd contribute. What I carry with me...

- Eddie Bauer trifold wallet that my grandpa bought for me years ago from an outlet mall... with no money in it.
- Swatch watch, my trusty titanium watch I got in high school gave out a few years ago, and this one was cool
- Samsung something slider phone. It sucks, I dislike it, but don't want to buy a new one
- House keys, amongst many others
- Car key

I don't actually carry much around on a daily basis. That's just more to lose. But I always have these.