It's what GhostPanda said. Just do your own thing, SEO isn't hard AT ALL.
Just try thinking of places that will attract your attention when you'd see a product of your shop on there. Think of networks like Pinterest, Facebook, Twitter and so on.
What is always a must-have in my eyes for a good SEO is a nice stack of 'personal' accounts on forums, blogs and other websites. Just make a fake profile with made up details, and start visiting those sites daily leaving your posts, comments or whatever.
This way, when you'll post a link on such a forum or blog it will most likely be appreciated instead of deleted because you have an active profile.
And always build links according to your traffic stats if you want a long term rank. Google finds it strange when a shitload of links come in on a website that's barely visited.