I think these little USB rechargeable batteries are going to be huge. They are NiMH cells, rechargeable at any USB port. You don’t need a cradle and cable. Just charge and go. Not only are they easy to use, but they are nicer for the environment, by preventing the disposal of lots of regular batteries. I don’t remember all the chemistry of batteries in landfills (those grad-school brain cells have been taken over by new bits of information, like the names of all four Wiggles), but batteries in landfills are bad!

In addition to AA cells, they will be available in AAA, 9 volt, and sizes for cell phones and PDAs. Visit usbcell.com for more information.

In honor of “Blog Environmental Action Day” (who comes up with this stuff, anyway?) here is a bit of wisdom that was passed down to me by a family friend when I was a kid. We were visiting a lake cabin with a small septic tank, and were advised not to flush the toilet or put any more water down the drains than absolutely necessary, lest we all find ourselves in a stinky, mucky mess. We were given simple instructions on how to do this:

1. If it’s yellow, let it mellow. If it’s brown, flush it down. I believe this is self-explanatory. Once, out of habit, I flushed on a yellow, and was met with “I hope that flush was really necessary,” when I came out. I was embarrassed for having forgotten the rule, and said, “Yeah, it was,” which was equally embarrassing to admit.

2. The shower had a push-button faucet, like a public restroom. One push would turn on the shower for maybe 30 seconds. Each person got two pushes worth of water per shower, which worked like this: Push once to moisten body. Lather up. Push to rinse body. Get out of the shower.

I guess if we all used these Cabin Bathroom rules at home, we’d both conserve fresh water and minimize the amount of dirty water going to treatment facilities, which would be a really good thing for the planet.