One of the Snapple Elementals drinks, in my opinion the best. It's clear and has a taste that's kind of hard to describe-- but once you get used to it it tastes really good. It's intended to refresh the drinker, and it really works, really really well. It has Ginseng in it, as well as Agave and something called "Astragalus". If you ask me, this is the _perfect_ coding drink. :)

"Rain" was also the name of the first Beatles song to contain musical elements played backward. It was the b-side to "paperback writer".