One topic that always seems to come up when people are starting off with Pinterest is "What are boards?" and "What should I make my boards?"
Think of a board as kind of like a Favorites List like you have on Etsy. But instead of just products, it can be, well, anything. For example, let's say you REALLY like chocolate cake. You can have a board called "Chocolate cake". And instead of products you can pin pictures of chocolate cake, cake recipes, cake decorations, cake decorating tips...anything you personally want to have in this collection of yours!
Now, the fun part. What should your boards be?
Here's an easy answer, and you already have it: make a single board for each category you have in your Etsy store!
If you do this, you can almost immediately have up to 10 Pinterest Boards filled with your products!