Spiffy Stores is built from the ground up with SEO priniciples in mind. We start with the URL's (the address you type into a browser's address bar). All product page URL's have the name of the collection and product in them, blog articles, pages and collection pages have the name of your article, page, or collection name in them.
In addition, every theme is hand-crafted by us to ensure that we make the most of every bit of text you enter.
We use product tags extensively on product and collection pages, so when you're adding a product, make sure you add your tags! They are used in your store's keyword meta tags, and your text is added to description meta tags throughout. All images also have alt tags generated from your product titles as well.
At the end of the day though, it's all down to you. You will need to research your keywords and use your keywords liberally in your pages, blog articles, collection pages, product descriptions, and product tags to rank well on them. We're great but we can't work miracles with one sentence product descriptions.