Some Bad Ideas: Art larger than 3 x 5 feet (I am being generous here), photo albums with more than 50 photos of one signing , things that squeak (living), anything fragile (it will get broken), live animals of any kind, anything weighing over 50 pounds, pictures of you and the writer blown up to poster size that your friend took at a signing, your ENTIRE collection of his/her work to be signed, anything you recorded while on drugs, open liqueur bottles with hand done labels in a foreign language, and anything you have to preface with "I found this in a graveyard...."

Neil Gaiman (Advice given by the Fabulous Lorraine, Gaiman's assistant.)