Halloween is a fun event for both kids and adults alike, but it's easy to rack up the expenses when you fork out for candy, decorations and costumes.

According to the National Retail Federation, the average American is expected to spend $80 on Halloween this year, up from $72 last year.

The hottest costume this year are all rooted in popular culture, including the TV show 'Game of Thrones,' and blockbuster movie superheroes such as Thor, Bateman and Spiderman. And since it is an election year, there is a lot of interest in political costumes.