Hi Mermaid, no hands on experience here but we have #2 arriving just after DD turns 2. So far my "plan" (whether it has any affect

) will be to setup bubs room a couple weeks before bubs is due and then keep pointing out everything for "Baby X". I'm hoping that by getting her used to everything like "X's" baby bath, "X's" nappies, "X's" clothes etc. when "X" is actually born and comes home some things will be familiar and she will understand what everything is for and not everything will be "new".
Our DD is a really good helper at the moment, which I'm hoping she keeps up, and I will be getting her to help out with everything she can like can you get "X's" nappy to help change him/her, helping with the bath etc, so she doesn't just get left out when I'm doing things with the new baby. (Man I feel silly calling bubs X

. We'll know which sex it is by then so I can call "X" by his/her name

).
I'll be watching your thread though to get some more "sensible" ideas

.