 It's Double Stamp Day today for Shop Moving Groove. Shop and dine in Fergus Falls today and receive double stamps on your summer shopping spree giveaway card. We're giving away more than $1,000 in prizes from our local merchants. Pick up a shopping spree card at the chamber and collect double stamps all day today for Shop Moving Groove. Drop off your cards at the chamber by July 15th. Shop Moving Groove is Double Stamp Day.