Well, I pretty much said it in my blog title.
Putting all your bobby pins in a paper clip holder with a magnetized top is an amazingly easy, cheap and helpful fix to help you keep all your bobby pins in one place. I know before I started using a paper clip holder, I would lose an average of 34,453,345,523 bobby pins a week (I know, because I counted all the bobby pins I threw at the number of creeps on the Ave. It was/still is a very expensive hobby).
The magnetized top is what really makes a difference. I often throw in bobby pins, and it gets stuck to the magnet, which makes it easy to grab the next time you need a bobby pin. This is a great fix for a lazy person, like ME!