I'm surprised by the number of people still using checks. However, I'm glad many are just using checks for bills, and not at the checkout aisle, where we're all in line watching, waiting.
Edit: Seriously, once the check is written, please just hand it over, and move along. Don't start doing your finances right there, when the transaction is completed. Please don't pull out the photos of the kids and grandkids. Please don't break out a slide projector and show us your Yosemite trip photos. Please don't take the time to cross stitch a "thank you" sign for the cashier.