Go to www.cleansnipe.com. Click on the 40% off link. Then click Buy Now on anything they show. Doesn't matter if you want/need/don't care for it. A detailed page about the item will come up. Click Buy Now again. A different window will pop up saying they are redirecting you to the Department of Goods website. Once there, search the Dept of Goods website for something you may need. When you add it to your cart, if the discount they are showing is less than 40%, it will say you have been given a 40% discount in your cart and it will show the price. It works for ANYTHING. If it's full price, it will still give you a discount. Perfect example: I just bought a pair of Arcteryx Stinger Bibs that were full price for 40% off (Not too shabby getting this years pants, $450 retail for $285 with 2nd day shipping). If you find something you like and they post a bigger discount than 40%, you get their discount.
I've been using this for a while now and figured I'd pass it along.