Just a suggestion, but I had the local print shop make me up 250 half-sheet flyers on nice paper. Decided to run out and hit a few shops around town. Only made it to 2...got a truckload of items and possibility to do a LOT more. There is a much better chance of getting customers if you can actually contact them in person, but an email works better than doing nothing. Small efforts can pay off big...so imagine how much more a bigger effort will create!