Schlepping a laptop into a coach seat is bad enough -- lugging along a fatty power adapter to boot is adding insult to injury. Kensington has got your back, or its trying to save it a little strain at least, with the Ultra Compact Notebook Power Adapter. It weighs 7.1 ounces with dimensions of 4.5 x 2.2 x 0.8 inches. Slinky indeed, and with adapters for most types of notebooks (Apple is notably absent), plus adapters for mini and microUSB, it looks to be very useful. There are two models, the $99 K38066US and the $119 K38067US, which also includes an adapter for use in suitably equipped airline seats. Jet setting