@dlowan,
Ketchup and catsup are the same thing -- tomatoes, sugat, salt. pureed and jarred.
Whatever it is in Ranch dressing that makes it Ranch, I don't like it. Never did.
And the dressing with Buffalo Wings is supposed to be Blue Cheese, not Ranch!
Yes, I think most Americans use bought dressings. In my own fridge right now are Italian, a balsamic vinaigrette, and mayonnaise, Also Miracle Whip, which is a mayo-like stuff billed as a "sandwich spread"...