I also sell scrapbooking supplies in my studio, and a number of us who sell for the same company get huge orders from someone who doesn't use a credit care, but will send a certified cheque. I haven't fallen for it, but some who have, claim that the next step is the cheque arrives in the wrong amount, and the customer requests that the difference be wired back to her. Needless to say, the cheque is a fake.