The first question is do you wish to stick to only Xmas Sweaters? If you do, there are several ways you can develop your business to a more year-round business without using a channel-approach (like partnering with year-round Christmas stores) but still sticking with your direct-to-consumer e-commerce site. Assuming you also don't want to start tempering too much with the production of the sweaters, you can simply create an additional line of shirts targeted for fall-sales, like "its never too early for Christmas" or "Wish Christmas was here already" -sweaters. You can use similar techniques to extend your season post-Christmas. Im more than happy to setup a phone call to discuss in more detail.