I've been making a fair amount of sales from my shop in the last year but only two of them have been from affiliate sales. Any advice?

Affiliates don't like leaks on a site which they're affiliating, so if you're serious about attracting affiliates then it might be a thought to remove the links to myspace, etc... That means any link that could take a customer away from your site and cafepress.com should ideally be taken down.

Kip