Now's a great time for frugal wizards to pick up a blazer for under $40. ThinkGeek partnered with with Robe Stock on a line of Harry Potter-themed blazers last year. They originally retailed for $119.99, but they're currently marked down to $36.99. That's almost 70% off! From the website:

Pick up your official Hogwarts house blazer, and be ready for your owl to arrive. You get your choice of Gryffindor or Slytherin. There's a patch with the house crest on the chest, and the piping and lining match house colors. Even the smallest details were not overlooked - the buttons have the Hogwarts crest engraved on them. These are only available here at ThinkGeek, so pick one up before you depart for Platform 9 3/4!

The blazers have just the right amount of details you can wear them without feeling like you're wearing a costume. They come in sizes ranging from medium to 3XL. Each jacket is embroidered with Gryffindor or Slytherin house emblems, and is trimmed with piping and lining corresponding to each house color.  

Grab yours before they're gone!