> Why does every store have self opening doors, but no houses do? This is easy to answer: I don't want a door that opens by itself (except in my dreams) becaus

> Why does every store have self opening doors, but no houses do? This is easy to answer: I don't want a door that opens by itself (except in my dreams) because it's potentially dangerous, might open when I don't want (and let my cat out) and it's likely an energy sieve. The juice isn't worth the squeeze - even not counting maintenance.