BRILLIANT IDEA

they should make a phone service for single or alone people that calls you 10 minutes before the scheduled end of your work day to ask if you're going to be home soon.
it would then motivate said single or alone person to leave work when they're supposed to rather than being the only one who stays late because, what do they have to go home to?

it would make millions. just like my salted raisins idea. :)