Product images. If you think images don't play a role, think again. When many consumers search for products in the search engines, not only are they looking at the "Web" results, but they're also looking at the "images" results. If you have quality images of that product on your site -- and the files' names contain relevant keywords -- these images will rank well in search engines. This avenue will drive a lot of traffic to your site, as potential customers will click on that image to find your store.
Nice work Laura! This is going to be a great series. I'm working my way through SEOmoz's Advanced SEO Training Series (videos) Vol. 1 & 2 to build upon the advice and guidance that you and your team provided to me during my time at Yahoo!. Now many others will benefit from your knowledge, experience and passion for SEO strategy and tactics. Best wishes for great success in your new role.