Shoe, the homonym of shoo, is, as you know, the item you wear on your foot that is not a sock. Or a tiny toe ring.

Has anyone ever said to you, "If the shoe fits, wear it?" It means that something you and they were talking about actually descibes you! 

Well, did you know that shoes didn't used to fit individual feet? Meaning, that until the 18th century, your right and left shoes were identical! So you would have to figure out yourself which one felt best on which foot.

Put your shoes on right now and reverse them - aren't you glad you don't live in the 18th century?