My wife and I have been subscribing to the Key Card for the past few years. We end up saving a lot more than we spend to get 2 books a year. I highly recommend it, especially if you are looking to save some money next year. Cost for the book is $20 for one or $35 for two. I guarantee you will save more than you paid for the book in the course of the year. Plus, all the money goes towards a good cause.
Hockey goalie, referee, adjunct instructor, and geek all rolled into one.