>> 2. Don't drink spirits.
This is probably true, but it contravenes the one piece of hard-won family folk wisdom that has helped me. Our method of removing kidney stones is as follows:
1. Go to a bar, take a piss if you can, then sit and order a Guinness.
2. Order 5 more Guinnesses and make a concerted effort to drink them all without taking a piss. Wait until you're absolutely desperate.
3. Go to the men's room and eject the stone. [the intoxication helps numb it, too].
I've watched my father pass them in the hospital; I remember remarkably twiddling one of his kidney stones in my hand as we drove him home, it was iridescent white and about the size of a shriveled pea. So far, though, this method hasn't failed me and I've yet to be hospitalized.