One of my eccentricites has to do with buying books. Unless it is a gift, I never remove the price tag on any of the books that I buy. This is to serve as a reminder that books are to be taken care of because every time you look down and see the price of the book you just bought, you’re reminded of how much you paid for it.
It’s usually something that people take for granted – removing the price, that is. Again, no big deal.