What does “adopt a highway” mean and how does it work?
What do these adoptive road parents have to do to earn those signs?
Do elevator “Close Door” buttons really work?
It depends. If you're in the United States, probably not. If you're outside the U.S., probably so.
How are cosmetic expiration dates determined?
It turns out the U.S. has more of a “you do you” approach to consumer safety regulation.