This Thursday, March 20 is Sweater Day in honor of what would have been Mister Rogers' 80th birthday. Sweater Day originated in Pittsburgh, Pennsylvania as part of the city's 250th anniversary celebration and the first-ever "Won't You Be My Neighbor?" Days March 15 - 20. Check out the video made by David "Speedy Deliveryman" Newell to find out more about Sweater Day. Take off that blazer and those dress shoes, put on your favorite sweater and sneakers and have a beautiful day in your neighborhood.