Yesterday it dawned on me the tip jar might be the greatest invention ever. The only problem is it's being used in an incorrect manner. Don't get me wrong I'm sure the tip jar is great for boosting employee morale; who doesn't love an extra $5 bucks at the end of the day? On the other hand it could definitely be a bit annoying for the customer who has to stare at the currency abyss that screams "TIP ME YOU A-HOLE!!!" OK so honestly I've never seen a sign quite that bold. Hold it-- google images just proved me wrong--please see below.
And to be honest, the signs that pull guilt trips or try to persuade you with their witty sayings really just make me feel awkward. The kind of awkward that makes you dart your eyes around so as not to make eye contact with the employee expecting to see a tip come out of your penny-pinching fingers. 
My point is the tip jar needs to be repurposed. I firmly believe the world would be a better place if we each had a tip jar. Not for monetary compensation (though that would be a bonus) but for our own individual benefit. Think of how nice it would be at the end of the day to go through your tip jar and see the abundance of advice others have bestowed upon you. Undoubtedly you'd have to sift through the advice the get to the good stuff, the stuff that would be of value to you. Kind of like getting rid of the lint and random coat buttons found in an employee's tip jar. It would be a tiny dose of Christmas every day to see what gift of advice is in store for you. And maybe if we used a little of that advice we would find ourselves richer than we ever could have been if it weren't for our tip jars.
