I've been DE shaving for 5 years or so - gone through right around 250 DE blades in that time. I actually still have all of them, in an old tomato soup can, which I drained using a slit in the lid. Then, I rinsed it out as best I could, and now slip the used blades into it. The best part is once it's full (probably 3/4 right now), it is all recyclable. See http://www.doubleedgerazor.net/faq-what-do-i-do-with-my-used-razor-blades-when-im-done-with-them/
Here is my blade bank that I use from an old vitamin bottle.WARHAWK
@Tom: Believe it or not it fits about 25-30 DE blades. It doesn't require a lot of space and it is perfect for my shave den.WARHAWK