Cheesemaking.com, I found a book I really wanted. Unfortunately, I felt it was a little high-priced for a paperback book. Any time I find myself in this situation, I check on Half.com, a division of Ebay. 90% of the time, I'm in luck, as I was with this book. Unlike Ebay, there's no bidding. The worst thing about this is that the postage often costs more than the book I'm buying, but I still save lots of money.
The book is $16.95 new; I got it for $2.96 plus $3.49 shipping. The seller listed it as being in satisfactory condition, but I would say it's in "like new" condition. I was pretty lucky, because today there are no copies of this particular book for sale there. (After doing this entry, I checked Amazon.com and found many copies of the book there for under $4.)
Half.com is especially helpful if you are looking for an old, out-of-print book. Those are often the cheapest, because there's no demand for them. If you are as old as I am, you might remember Gale Storm: My Little Margie and Oh Suzanna were TV shows in which she starred; she also had a couple of successful recordings. One time I found out she had written a book in the 80's and I wanted to read it. Sure enough, there it was on Half.com. I see there's a copy of it there right now for 75 cents.
Just thought I would throw that out there. It's one of the two best places to save money on books; the other is Amazon.com, which right now has a seller with an old copy of Gale Storm's book for a penny, plus $3.99 shipping. Not that any of my readers are probably interested in that particular book.
Maybe everybody already knew about these resources, but it never hurts to pass a little information along.