With another one coming in February, we are making the guest room DDs "big girl room" and keeping the nursery as is. Its almost ready, and we want to spend a few weeks telling her how "cool" this new room is - before moving her. I also want her moved before baby sister moves in, so she doesn't associate the two. Any tips or tricks? I've heard a lot of horror stories, so I'm hoping for advice from seasoned mamas. Anything that worked? That you'd do differently?

We are moving her to a big bed with rails - we aren't doing a toddler bed. More of a budget thing - we already have the bed.