First of all, the handle has got to fit your hand. I can’t believe that this simple feature has been ignored for so long that the handles on most coffee cups look like they were an annoying afterthought. I have put way too much thought into it, as you can see. Yes, I was that guy staring at you in the coffee shop while you drank your coffee, trying to document the different ways people hold coffee cups. I put rounded edges at the bottom of the cup so that nothing gets stuck down there. You can see it in the cutaway above. The most important part of the puzzle is how it feels on your lips. Most people never give that a thought, but you would know what I’m talking about if you ever found that perfect lip feel. So these are a few of my ideas, and I would love to hear any thoughts you might have before I get this little beauty made.