The sale of souvenirs at Walt Disney World can be a touchy subject. Some believe that Disney simply wants to separate you from even more of what's in your wallet. Fans on message boards plan and strategize to spend as little as possible on merchandise, sometimes even pre-purchasing souvenir at home and carrying them along in their luggage. The science of marketing and impulse purchases is well in play at the Disney Parks, but bringing home souvenirs is a time honored tradition that reaches back much further back into history.