Hey Nicole, Well done on Scarlett having her harness off for some time during the day. I remember when Olivia was allowed to do it....it was so amazing. Loads of tummy time is good. I just let Olivia play on the floor, practice rolling. Just dont push her legs together (am sure you know that), but if she does it herself then its fine. Enjoy her harness free time.
Olivia has been harness free for almost a month. Her sitting is great, she can now sit from lying on her tummy and shes rolling and almost crawling. Her legs still are a little bit apart, but not as much as before. Her head is not as flat either, phew. If I have another bub with DDH (crossing fingers I dont) there is one thing i will do and that is make sure they are sitting up on pillows or bean bags. livys head was so flat there for a while and the suggestion of a helmet came up a few times.
All the best to you for Christmas and have a safe and happy new year.
Love Melissa