The Twins' Blanket

Two twin girls, one blanket, which they've shared since they were babies. But now they are five, and ready for their own beds. Who gets the blanket? This lovely picture book is twice as old as the girls now, but I'm not sure that many readers know about it (except for twins, perhaps). I think it's a classic—for anyone, twins or not—about the frustration and love with the one you're closest to. (Age 1 to 5)