Beginner Gardening: Christmas Cactus help, 0 by Eternia

Eternia wrote:
Hi all,
I have a question about water care for the Christmas Cactus.
I recently bought 1 (Jan 28/13) and its doing great but-im scared to water it :/
Its in its original 6'' pot and has not been watered since i brought it home,so my question is how much to water? i read on the internet to water till it runs out the bottom and again when it drys up and/or also to water a 1/2c once a week?
Which is the preferred way to water? i don't want to over do it but at the same time i don't want to dry it up either
Thank you for any help :)