We all know that really good designers somehow think differently from you and me about new products. But just exactly what does this difference consist of? The best summary of what makes really good designers tick was a simple post by Bruce Nussbaum back in 2007. Since reading that I’ve often pondered the subject and today, I find it helpful to look at my experience of how good designers think (and do) at each stage of the innovation process: insights, inspiration, and action.