+ Why is it that, when I am with my wife at a cafe or pub and she pays for something, the waiter inevitably gives the change to me? (Not that I'm complaining ...)
+ Why do we take home the small packs of soap and bottles of shampoo from motels and hotels? The only reason I can think of is so we can have a small amount of the product to use while we're away from home. But then we'd most likely be in another motel or hotel, where they provide enough soap and shampoo for us to use - and take home!