Local lore in Saint Louis claims that Cary Grant started the trend of placing a mint on a pillow. In an attempt to woo a lady, he had the bell hop let him into her room and place a mint on a pillow with a calling card.
DID YOU KNOW? Marlon Brando hated memorizing lines so much that he posted cue cards everywhere to help him get through scenes.
He even asked for lines to be written on an actress's posterior. (That request was denied.)