As I've said here before, I love Teaching Company. One of the things I love about them, in addition to a great product is that they have really good sales. I could never afford their products if I had to pay full price.
Currently, there is an amazing $10 sale going on. Shipping is another $10 for the whole order. However, I found a coupon code: 42248 which should give you shipping for only $.99!
Note: ENDS TODAY!!!
Addendum: I just ordered. The good news is that the coupon code works. The bad news is that you can only order one $10 set per customer.