I find that listing each night works well to bring in views/hearts, but not sales, which is driving me up the wall. Having a good banner, good pictures, good descriptions and that sort of thing makes you look more professional so people are more likely to click and then look again later on.
Another thing you could try is social networking. Facebook, twitter... and I'd recommend having a a blog/website and commenting on others (outside of people who sell on Etsy - just every day people who blog) because this brings traffic back to you as you're leaving a link behind and lots of people return comments they receive.
There's also of course advertising but that can get expensive.
