I am trying to figure out a backup solution for my macbook, when i came across the idea of having two different drives. 1. For the whole family, to be brought home every week or so to back up my entire hard drive then be stored offsite (in case of fire etc.) 2. A USB stick to which i can store my documents and emails which will be kept at home at all times. This is all well and good but I am just wondering how to set up time machine to backup up different folders to different drives at different times. Thanks a lot for any advice.