When you check two bags with a curbside porter at the airport, what is an appropriate tip?

Question

When you check two bags with a curbside porter at the airport, what is an appropriate tip?

Answer 1

five bucks for two bags is good, doesn't matter if ur flying first class or coach, it's just two bags!!  true they can kiss if they give you a funny look.  but i don't think that's gonna happen.

Answer 2

I give em 5 bucks.

That's more than enough to lift my two bags.

If they want more, they can kiss my ***.

Answer 3

5-10 dollars is usually a good tip for multiple bags.