I've found so many great books, including some for homeschool, and my shelves are quickly filling up with books. I've found plenty of great classics like Jane Austen, The House of Seven Gables, and Shakespeare plays. This Field Guide to Early American Furniture was free.
Books like The Trumpet of The Swan, Rebekah of Sunnybrook Farm, Roll of Thunder Hear Me Cry and The Book of Indians have also found their way home with us.
This small stack of books has since doubled and is continuing to grow. Do you take advantage of library book sales? I like to call it being an opportunist.