What to do when you're stuck indoors...

It's been too cold to get out and do anything so we've spent a lot of time cleaning (not even so much as a dirty sock in the house) and playing on the floor. Audrey thinks she's so big. She's sitting up and wants to crawl in a bad way and gets so upset when she doesn't get anywhere. She's just 4 months so I'd rather she take her time with these things and stay little forever.