Applicable at all restaurants: two napkins for every food item (including malts/shakes) purchased, one for every subsequent item. This is not to exceed 5 napkins for one person, 8 napkins for two people, and 10 napkins for three people.
A straw for every drink item ordered, with the exception of hot coffee.
One salt packet (two for Culver's) should be provided for every french fry order.
At least two sauces (maximum three) per large order of chicken McNuggets, fingers, wings, etc. should be provided. Employees should prompt customers for their choice of sauce.
Applicable at specific restaurants only: at least one hot sauce packet per McDonald's Breakfast Burrito.
One mild/hot sauce packet per taco or taco-based food item at Taco Bell. Employees should prompt customers for their choice of sauce.
If I think of any others, I'll let you know.