Today we were on our way out. Cambria was being super toddler and was ready to go before anyone else. She was playing around, going in and out of the door, then I asked her if she could help put Corbin's coat on. She excitedly said "yes!" And then matter-of-factly walked over to the coat track, grabbed his coat, opened it up, put it over his head and said "boo!" And then proceeded to help him put it on.
She couldn't quite figure out how to do it, but I think she felt good that I needed her help. I felt good watching her help (and it was adorable setting her do things daddy does with her), and Corbin felt good getting some positive attention from her.