This is what my son laid out to wear to kindergarten tomorrow... No special occasion, he just wanted to wear a tie. I did talk him out of wearing a track jacket as if it were a dressy sport coat, because I think it would get hot. Most of the time he chooses his own style, though.
What about your kids? At what age did/will they be responsible for choosing their own clothing? Do you set any parameters on what they can or cannot wear?