Threadless seems to be having a bunch of sales recently, which is awesome. They’ve just started their latest in celebration of the Halloween season. Until October 19th all t-shirts are only $9.99 and hoodies are knocked down to $29.99. It’s a great time to stock up on hoodies for the incoming cold weather (unless you live in one of those weird places where it doesn’t get cold), or to just pick up a few new tees.
As I said, the sale runs until 10/19, so you have a couple days before it ends. Don’t wait too long though! I do have a page that lists Threadless coupons, though they’re probably disabled during the sale.