When we travel, we really like to keep things compact — even when it’s something as small as a power plug. Min-Kyu Choi basically came up with the design for Mu plug after she got peeved with the dimensions of the traditional plug. It allows you to fold what otherwise looks like any other fat three-pin plug into a pretty compact 14-mm adapter. That’s 70% gone. Sounds like the perfect diet plan for all our fat gadgets.