We're doing a cloth diaper service ($17/week; doesn't include covers) for the first month or two, then plan to switch to washing them ourselves. You can get cloth diapers and covers almost for free on Craigslist, so we're slowly building our supply. I also got some g-diapers for long days out of the house - they are a tiny bit more expensive than the diaper service, but when you consider the impact of not using excess wash water, they're still a pretty good deal. Especially when you consider that you're not spending extra on trash service for 70 disposable diapers per week - we pay our garbage service by the size of our trash can, and therefore factored in what that would cost. Plus, I'm not such a fan of consumerism in that way, regardless.