A Silver Lining to 2015's Horrible Weather: It Made Us Better Tippers

On a horribly snowy afternoon this month, I ordered a cookie pizza from Papa John's using the online form, which offers the option to enter in a credit card tip for the delivery person. I put in $2.50, about 20 percent of the total.

But when I rushed downstairs to retrieve my order, I saw that I'd set my tip too low considering the conditions outside. Parked in front of my office, the PJ's guy struggled to pull the sweet pie out of his car—icy gales kept blowing his door shut. He nearly slipped jogging up to top of the steps where I stood, and breathlessly insisted on opening the door for me while as he presented my order. I thanked him profusely, but with no cash on me or upstairs, I was ashamed to present him nothing more in person.