Free paper strips, useful or not?

I saw this at a Starbucks the other day. They are blank strips of paper and there is pen next to it that you can use to write down stuff and tear the strip. Pretty clever and useful! I haven't seen it in any other places so far.

I wish there was one at a bar when I wanted to write my phone number and give it to a girl whose boyfriend happened to be sitting not far from her. Uhhhhh :-(

http://www.thinkaloo.com