Welcome to the Q&A Forum

Duplicate links on a page are fine. As EGOL shared, you only want to offer a duplicate link when it makes sense and offers a benefit to users. The SEO community all seems to agree only the first link is counted with respect to Google, but I have been unable to locate an authority such as Matt Cutts who provides a response confirming this information.

You could also potentially offer RSS feeds for many different categories of products: newest products, top sellers, screaming deals, get-it-while-it-lasts, etc. Since RSS feeds are useful for deep indexing on an eCommerce site, they are valuable for both consumers and bots alike.

I can't see how you could beat MozCon.  While I am not in the business of SEO, I asked my wife if I could go to Mozcon for my birthday gift.  She laughed and said I have serious problems, but it would be a kick to listen to an meet the people who are so far ahead of the curve.