*Totally stolen line from my friend Graham.
SodaStream seltzer maker. I'll admit that I was hesitant the day we were in the store looking at it. And during the purchasing process, I became a complete asshole, but that was because I wasn't permitted to ask any questions. Ya'see, we bought it at this place that specializes in "green" products -- most of which I think don't serve any useful purpose other than being recycled from shit someone threw away. Well, as soon as Anon GF expressed an interest in this thing, the two women who own the place started extolling its virtues and another woman who was in the store joined the chorus and the three of them would have sung 35 verses of Kumbayah to prevent me from asking any questions.
Ultimately, I waited outside (sulking quite well, thank you very much), while Anon GF completed the purchase.
Aside from the unpleasant purchasing experience, I/We absolutely love this thing. (Note: the only thing unpleasant about the purchasing experience for Anon GF was me being a dick.)
No, really, this thing is terrific. I haven't actually counted how many (1 liter) bottles you can carbonate with one CO2 canister, but they seem to be lasting us about a month before needing a refill. The canister costs $36 to buy and then they refill them for you for $18.
You can buy "flavors" like cola, root beer, citrus and some other things. We've tried each of the flavors once. Sorry, SodaStream people...the flavors all taste like ass. I've found that it isn't really any hassle to just squeeze a lime or a lemon (or 1/2 of each) into a bottle and that tastes great. I'll also admit that sometimes I add a teaspoon or two of sugar to the bottle. It's still a hell of a lot less sugary than most sodas you might buy. And when I'm being terminally lazy about it, unflavored is pretty damned refreshing too!
And the only thing I'd like them to change about the system would be if they'd come out with a version that has 1.5 or 2 liter bottles. Making the soda isn't a big deal, but I wouldn't complain about having a bottle last a little bit longer.
Anyway...you guys should all get one of these. You'll get to feel all environmentally correct while you get really good seltzer for cheap! (The good and cheap is the part that appeals to me most; shoot me if you must.)