I’m looking for a children’s picture book. It’s about a boy and his mother. Christmas is getting close. As they go about their days, they frequently pass by a store window, where the boy sees a sled he wants. I think it’s a red Radio Flyer type steel sled with rails. He wants it really badly. The story builds toward Christmas, but on Christmas morning he doesn’t get the sled he wanted. I think there may be some other, cheaper, sled under the tree. But it’s not the one from the window. I feel like it implied that the single mother just couldn’t afford it. I remember it being a sad book. This book always used to make my mom cry when she read it to us. Things have improved for us all now, and I’d love to find her this memory.