You can try Amazon's Echo Look if you want AI to offer fashion advice at home. But what if you're at the store, and would rather not hem and haw while you decide if that top goes with those jeans? Guess and Alibaba think they can help. They've worked together on an AI system, FashionAI, that uses computer vision to help you create an entire outfit while you're shopping. A smart mirror can recognize the color, style and traits of what you're holding (such as the neckline) and suggest other items that would be a good complement, including clothes you've already bought online. Can't style your way out of a wet paper bag? You might only have to pick one piece that strikes your fancy to create a full ensemble.