LOL!
Keifer is a fermented milk drink. You can get 'live' keifer grains, but I use the freeze dried ones I get online from accompany called yogourmet.
You just scald the milk, let it cool, add the keifer grains and let it sit for about 24 hours until it thickens.
I make a 2 quart batch and use a cup every morning in a fruit smoothie, so I only have to mess with making it about once a week.
Like other fermented products, you can reserve some to make the next batch, too.
So Keifer is just yogurt only more trouble than buying at the store! Right? :)
I found a bottle of already prepared keifer at Wholefoods today. I am going to give it a try.