My niece, who lives in Bullitt County, Ky., is already out of school for the summer! And most of her cousins will follow suit next week. My son, Charlie, is looking forward to half-term next week in the UK. There are going to be times when they’re bored and the weather will prevent them from going outside. For those occasions, cookbook author Elinor Klivans suggests Slice & Bake Cookies. Make a double batch, so you always have a roll in the freezer. Spread out plenty of newspaper, put out bowls of icing and decorations, and let creativity reign!