In the downpour that preceeded last night's concert, a lot of Rolling Stones fans missed the memo that umbrellas are not allowed at TCF Bank Stadium. Canisters at the entrances were overflowing with discarded umbrellas. Through the rain, Golden Valley retailer AlwaysMod saw opportunity. The first 20 people to bring a Stones ticket stub to the home furnishings store, beginning Thursday at 10 a.m. will receive a free umbrella. After that, get 25 percent off umbrellas through Sunday with a ticket stub. AlwaysMod sells umbrellas you would not want to forfeit at a concert—especially the Marimekko designs.