K.B.
My son is almost 8 and my daughter just started kindergarten too. My husband is taking her to an early movie. He took my son before school started but saved hers for after. In my business to get things done, I sometimes forget that it is fun for the kids to just have me play with them. So, I played with pretend puppies and little lambs for a very long time and hide and seek, whatever she wanted. She loved it. I really liked the idea of a cake, which reminded me that on the first day (this was for both kids obviously) we had pizza day all day long. So, pizza for breakfast, dinner and dessert. My son said he'd like to do that for every first school day from now on.
Have fun!