We eat lettuce about 4 or 5 times a week, primarily in salads, but also as sandwich toppers, or in tacos and such.
Our salads are usually a store made mix of young leafy greens (spinach, arrugula, frisee, red and green oak, red and green butter, baby romaine, swiss chard, etc.), and we buy head lettuces like iceberg or romaine for topping type lettuces, or the occasional ceasar salad.
There was this weird trend here in the states a few years ago of something called a wedge salad. It was simply a quarter of a head of iceberg lettuce, a large wedge essentially, that is then doused in salad cream and crumbled bleu cheese. That's it! Just a large chunk of relatively flavorless lettuce and bleu cheese dressing. It was a big thing in steakhouses here, I guess because it is manly to have to use a steak knife on a salad.
Just weird.