Let me try since no other one answer you yet.
How do I repot a holiday cactus?
Allow them to get fairly crowded and root bound before repotting. They dislike being disturbed. As they get older, they look best if they are divided into smaller pots. All repotting should be done just after the bloom.
http://www.bachmans.com/retail/tipsheets/indoor_plants/HolidayCactus.cfm
The tip to have full bloom: keep it outdoor in summer, but no direct afternoon sun. Mine bloom for me even I am so lazy.