“Crud!” The woman slammed her hand down on the flimsy plastic tray, sloshing her complimentary beverage onto the seatback in front of her.

Her husband glanced up from his SkyMall catalogue. “Something wrong, dear?”

“I forgot to buy a souvenir magnet. Now it’s like we never even went to Hawaii!”

Devon R. Widmer, a graduate student in chemistry, spends far too much time worrying about remembering events and not nearly enough time enjoying them (as evidenced by a refrigerator littered with souvenir magnets).