I started using twitter only doing promotional tweets, like whenever I added a new item. I started to feel kind of spammy, and thought I wouldn't want to follow someone that only had products of whatever they were selling in their tweets, so I still post every new listing to twitter, but I am trying to get into the habit of tweeting non listing things. We started tweeting a photo of sketch of the day, just a snapshot of something in one of our sketchbooks, random thoughts I may have about the creative process, inspirational creative quotes etc... something to make my follows feel like I am a real person, not just some shop.