Most adults who plan on celebrating Halloween have probably already decided, planned out, and bought their costume in advance—or they just plan on wearing the same thing as last year as an easy cop out. But if you haven’t decided on a Halloween costume yet (or if you you’re not dealing with the nonsense of highly flammable and disposable clothing in this economy), don’t worry about it.
Every guy who has a complete wardrobe already has everything he needs to execute a great last-minute costume—whether he knows it or not. From well-known movie stars to The Dude, your closet is brimming with Halloween ideas waiting to come to life. You just have to figure out how to combine those elements to get the right look—and that’s exactly what we’re here to help with. Below are 16 costumes that you can pull off in a jiff using only your closet—without spending a dime.