It seems that we are always wracking our brains for clever things to entertain our kids. The best activities are, of course, the ones that are literally right under our noses: One day after school my daughter and I went for a walk in the park and very instinctively started collecting leaves. When we got home I showed her how to make leaf rubbings, which I had all but forgotten about with my boys. It kept her busy for about an hour!