A lot of people prepare weeks in advance for Halloween, but if you're not one of those people, you could probably use some inspiration for last minute costume ideas.
One of the easiest ways to pull together a quick costume is by turning to masks. They quickly and (often cheaply) transform your entire look with just about no effort. Another benefit is that they're available for nearly any idea you may have. Whether you want to dress up as Hilary Clinton or Chewbacca, there's a mask for that.
Another quick and easy way to dress up is by wearing thematic leggings or sweaters. These are not only cleverly designed to reflect your enthusiasm for a character, but are often awesome enough to be word on a daily basis.
20 Last Minute Costume Ideas
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