OK, so I know I need a cabin that is big enough for three small women but do not want a full suite. I know it does not have to be wheelchair accessible. Great, there are lots of those on a big ship. But I don't know how early I need to book my cabin once my family picks a cruise. Should I request a specific cabin ASAP or wait and see if prices go down? My current expectation is I will sail on a Princess ship first, although that is still TBD. I plan to board my first ship in 2013 for one week in the U.S. and Canada.