Several years ago, pioneering podcaster Adam Curry had an ad campaign going for Senseo, a Dutch coffee maker that uses individual single-cup pods. At the time, I thought it was kind of a silly idea, though he genuinely seemed to enjoy using it.
For Christmas 2008, my wife bought me a similar machine, a Tassimo by Bosch. I had been wasting quite a bit of coffee, because I'm usually the only one to drink it in the house, but I do have some almost every day. The Tassimo, with its plastic pods, at first seems a bit wasteful too, but rather than our making half a pot and throwing most of it away, this system lets us brew a single cup of coffee, tea, latte, hot chocolate, or whatever in less than a minute. If I want another, it's easy to make a second one.
The system is clever because the "T-Disc" pods each have a barcode that the machine reads in order to know how much water to brew, how hot it needs to be, and how long to brew it for each beverage. Of course, that means that you can only use Tassimo-branded discs (from makers including Nabob, Maxwell House, Gevalia, Starbucks, etc.) and can't refill them with your own coffee, which is very corporate and controlling of them—in principle.
In practice, I pretty much always brew pre-ground brand-name coffee anyway, so the only difference for me over the past few weeks is that the Tassimo is more convenient. I'm sure the roast-your-own-beans crowd would be horrified, but I have bigger things to worry about.