My dad has a large movie collection that entertained me for hours during my youth. Not watching the films, but arranging the cases alphabetically, by genre, by how much I liked them, by how often I watched them, by color, and by age.
I was both psychologically and physically a very anal retentive child. Unfortunately it manifested in strange quirks like hording toiletries under my bed and using scissors to shred anything I could get my hands on. At least it saved my parents money on diapers.
In other news, after a brief trip to Kohl's, I am now both unreasonably tired and somewhat nauseated. And I have some clothes that fit over the basketball I'm digesting. And some that will eventually fit said basketball.