What I like to do, for lunch in the summer because work has a refridgerator that people don't pillage through, is bring bagged lettuce, and the rest of the ingredients for salad for 2-3 days. In the winter I get self-serve soup and go light on the broth. Those things have saved me money. I also bring a 38 oz bottle of water and refil it daily at the spring water cooler. Sometimes I put Chrystal Lite in it. McDonalds has pretty good $1.07 coffee.