First day of school

Cooper had his first day of kindergarten a few weeks ago. It was a bittersweet day. My sisters knew I was a little sad, so they came and took me to lunch and that made the day go by faster. :) I've since learned how quiet my house is when Cooper is at school and now sending him to school is no longer a problem. I walked him to and from school the first couple of days and ever since then he walks with his friends. He's so grown up! His teacher is Ms. Reeves and he really seems to enjoy school. He comes home everyday and empties his backpack to show me what he did in school that day. He made me laugh the other day, though because I told him the next day was Friday and then he was done with school this week. His eyes got big and he looked up at me and asked, "I'm done with school forever?" How do I explain that this is just the beginning . . . . :)