It's no secret that we live in an increasingly disposable world. Where once we would spend hours or even days repairing and customizing our gadgets and home appliances, now we just replace them when something breaks or fails to live up to expectations. Danielle George, professor of radio frequency engineering at the University of Manchester, may sound like a bit of a crank when she complains that people under 40 expect everything to "just work," but she has a point. If your Nexus 4 starts seeming a little slow, most people don't wipe it out to get a fresh start or install a lightweight ROM. They just go out and buy the Nexus 6. If your laptop battery barely lasts an hour, you don't crack open your MacBook Air and swap in a new one; you use it as an excuse to pick up the latest generation of Apple's ultra-light machine.