For Annika, picking out the right pajamas for the evening is a big deal: she won’t wear Big Sister jammies or cow jammies if she thinks that it should be a monkey jammies night.  So, she was very excited when she one day decided that her brown polka-dot nightgown was reversible: ballet slippers on one side, polka dots on the other.  Of course, now she faces the additional agony of trying to decide which front side should be the front on any given night.