With my creations, I keep the ones I like on the top shelf of my desk~ I literally have a small mountain of models. With incomplete models, I keep them on the bottom-shelf of my desk. I have a pile of incomplete models as wel... everything else I either throw away if it's from foil paper, or recycle.
My super growing flickr gallary- Check it out!
_Insert witty signature here_
My models litter the floor of my room and are crammed into boxes through out the house. I keep about 10 of my best models on my desk and put other decent oneson shelves. Periodically, I throw the old and not so great models away. Eventually, the origami infestation in my house will grow to a point where I have to throw boxes of models away.
Although I could just go up to some random person and give them a box of origami.