It says the author of The Potty Caddy is Rachel Gordon, but I suspect it’s not the same MUM.  Get half-price vouchers for bargain books from BookCloseOuts.com with this online Groupon I found under LA deals. Although shipping is not included, you can use the value of the voucher towards it. Discounted, new books run the gamut from fiction and political science to music and gardening. Stock up on beach/pool books and you won’t have to worry about lotion on a library book. Limit one per person; one additional as gift.