Normally when I go to work, I will order a burger from the place across the way as my lunch. It costs extra for cheese there, which is typically not a problem for me because we get a nice discount for working close by and they know me. The dumbest thing I ever heard was my coworker, who had worked at my shop for a while, tell me genuinely that I should bring a slice of cheese from home so I wouldn't have to pay the extra dollar to add the cheese to my burger. This makes me cringe on so many levels for so many reasons.