oh airline industry, how you don't ever make sense!

Recently I took a little trip and while I was on the plane, I was served a complementary beverage in this little glass. I was also given this napkin.  Now, as I was sitting drinking my free water (water should be free regardless, right?), I got to thinking...

How much money do you think US Airways could save in a year by not having custom molded plastic cups and custom printed napkins?  I'm serious here people! Give me an answer!

Maybe they could stop charging for your 1st checked bag if this stuff was eliminated?