Clark Kent
If you don’t wear button-ups normally, this costume might require a trip to the store on your way to pick up a Superman t-shirt to go underneath. Sometimes people wear red ties and sometimes people wear black ties, you choose. You’re supposed to look disheveled or else your Clark Kent costume won’t work. Glasses would also be nice, but don’t stress out if you can’t find any. Now comb your hair, unbutton a few buttons, and save the world.