Lorelai: You know, the stationery and the postcards that you leave in the guests' room so that they can write a letter home saying, "Having a great time- wish you were here." Which, of course, they don't, because you were the thing they were trying to get away from in this first place.
Luke: Nobody uses that stuff.
Lorelai: Oh, sure they do.
Luke: I have never once stayed in a hotel and used the stationery or written a postcard.