I just eat them with ketchup. Well, actually, I prefer sriracha ketchup. And there was that one time I used some ketchup that was on the table at a McDonald's or whatever on my fries and said, "wow, that ketchup is really good!", and it turned out my sister had mixed it with salt. (I know, there's already salt in ketchup. She made it saltier.) And cocktail sauce is good on fries, too. Last night my mom and I were at IHOP eating some fries, and all that was available was cocktail sauce, so I used that, and it was pretty good. Honey mustard isn't bad on fries either.