If you have a home decor service or store, pin photos of rooms you have styled or rooms you've come across that inspire you. Those with a furniture or home accessories store can look to West Elm's presence on Pinterest. They do a great job of giving inspiration for home decor while at the same time showcasing their products in an easy-to-see format.
We can learn a few things from their technique. Most importantly, pin actual items from your store with the price to indicate the items are for sale.