Years ago, we bought this plastic (and more expensive than it looks) outdoor shed / cupboard thing in an attempt to deal with our storage woes.
The problem was, it was not as weatherproof as we'd have liked, and was a bit of a pain to use... so when we started doing some cleaning and clearing out lately, we came close to chucking the thing...
but when it was empty and open, it suddenly turned into a "house"...
a bit of cleaning, a bit of a blackboard and (ahem) a bit of plastic bag bunting later, it is now a fun and happy cubby, and part of our backyard in progress.
(we are loving the bonus "pink snow" too... but will need to clean it up soon!)