Desertgrandma, glad to see you realize reading books and collecting books are two different things!
I got my kindle mid-nov last year, and I have 55 books from Amazon - but I think I got 15of them free. So I bought 40 books from Amazon (a lot at $1 - $2) and a couple elsewhere. I have downloaded a lot of free books - I have 121 books on my kindle, and 79 samples. But I think I will delete the samples and concentrate on the 121 books. I can't afford another 79 books!
This is why we need folders! I have romance, history, baseball, classics, mystery, political, all jumbled together. I have to page through to remember what I have in each category. Since one of the selling points of having a kindle is taking your library with you, you have to be able to organize your library! Mine at home is organized according to subject, and then either chronologically or alphabetically.