Menage a Trios

I have always wondered why socks should come in pairs, If they came in sets of three then they would come with spares. There’s always one that wears out first, the first to sprout a toe, But if you had an extra one no one would ever know. This could help me with the one-footed ogre that lives inside my drier, Then if he stole a sock from me my dilemma would never be too dire. I know that it’s not natural to include a third when having socks, And simply by my proposing it I’m sure there’re some that it still shocks. It need not be a wasteful thing and some men could use the other sock, When wearing two upon their feet they could don the extra as a jock.