No, I just fold them and press them in my wallet. That way, when I pay for stuff at the store, I pull out a wad of origami bills, it's much more impressive than using my card!
Yes and no - I'm present in the IRC more now, except I'm more active on the forums. I only talk in the IRC when someone comes in asking for help, or if there's something interesting to respond to.
I guess someone who's following me on Twitter, now that I'm more active on it.