The only reasons I go out currently:
Work (If I could work from home, I would. Obviously)
Groceries (Could be solved by this article)
Clothing shopping (Ordering online will never compare to how something will look on me in person)
To get laid (Probably never going to have a "live-in" again, but if I got so rich I could afford daily escorts? I'd consider it)
Other than that, I can't really think of anythingelse I leave the house for these days....