I had some spare MDF lying around, and didn't have much to do with it. We needed somewhere to shove our grill and gardening tools, so a couple of screws later I now have a reasonably unattractive MDF shed, built as a 3:4 triangle to fit under the stairs of the apartment above us.
I just realized that this thing may not hold up the best in weather. What's the proper sealing method -- polyurethane, epoxy, ... -- to keep MDF well-formed in the elements? This thing shouldn't be getting all that wet (since it's going to be under the neighbors' stairs, which have open backs) but it will be dripped on regularly. Also, I live in LA, so humidity isn't really a concern either.