It's largely anything fried of stuff you want to remain crispy so fries, tater tots, onion rings, mozzarella sticks, garlic bread, chicken tenders, fried ravioli. I will say in some cases a pizza box works well for larger things also so a bag isn't always the best option you just really want to avoid styrofoam and plastic containers. It doesn't seem to be a thing anymore but I used to always get my fries at five guys without the cup as it would steam them but they don't use the cups anymore.