My youngest son loves cars and Legos and trains and anything even remotely related to wheels. He is also five years old, which means that he doesn't naturally clean up after himself. In fact, being who he is, he tends to pretty much drop whatever is in his hands where he happens to be. This means that we regularly find Lego parts and Hot Wheels cars all over the house. As a parent I'm supposed to get annoyed when this happens, but, truthfully, it actually brings great joy to my heart. I love finding these little treasures all over the house, and I know for a fact that one of these days I am really going to miss it.