I wish I knew that Squarespace wasn't integrated with my print lab (Bay Photo). As suggested, it's a good idea to reverse design your site with function and purpose in mind before you think about look and feel. Printique does not offer products (sizes and options) that I want to sell or the control/customization with how it integrates with my Squarespace store. Not saying the same wouldn't be true with Bay Photo but switching labs or website hosting providers for the right combination is not worth it, especially with limitations or unknowns. I will continue to manually build my Squarespace store and submit orders separately through my print lab. I don't benefit from a true integration but at least I have more control with product offerings and how they are presented.