1322 minor third sent this in using the SOTM Flickr group. He wrote: “That was the first thing my wife ever said to me. We were both in high school, working at a Genovese drug store; it was my second day and Erika's first day on the job.

"It was just before closing and i was stuck straightening the toothpaste aisle, and she came skipping down the aisle and said, "Smile." And then she was off, skipping again.

“That was 16 years ago.

“I haven't always taken that advice, but I'm trying.”