I want to take a moment to help you become a more powerful user. It won’t take much time and effort, and it will save you a ton of time if the unexpected strikes you down the road. And it is really simple to do and doesn’t require much in the way of technical knowledge.
Last week I lost the power supply to my laptop somewhere between the airport and home. It isn’t a big thing, and compared to losing my laptop ranks low down there on the charts. But it could have been much easier, if all I had to do was take note of something very simple: the power specs of my AC adapter.