Maybe a new tradition for every year??? A Day In My Life: Birthday Interview. I like that it's simple questions, like the handprint too. And this idea could be used for all ages - NOT just kindergarten!
Hands to remember. Trace your child's hand on their first day of school in every grade and watch how fast they grow! You could even put facts on the back of the hands about favorite things in school such as subject teacher book at the end of the year too.