Well, my new toy arrived today, and I'm in love with it already! For those who can't afford or can't fit a Toto Washlet (my toilet is not compatible, apparently), this travel version runs off a single AA battery (included). You fill the reservoir with water (warm if that's your preference, or cold) and then you're ready for business. It has two settings of spray, and one reservoir has enough to very thoroughly finish the job. Also has a snazzy carrying case if you want to actually use it to travel. http://www.totousa.com/travel-washlet It's cheaper on Amazon, and the US and Japanese versions have different model numbers but are actually the same thing.