4. Always Buy Generic: Soda
This is the one item Gurwin says goes against his principle that items that are cheap to produce don't save a lot of money when bought generic, but that the most money can be saved on generic items that are expensive to make. Soda is cheap to produce and the generic versions are often much cheaper than the brands, he said.
But as with all generic foods, give this one a taste test before buying cases of cheap cola. I can tell the difference between Coke and Pepsi in a blind taste test, but Gurwin says most people can't tell the difference between a generic cola and a name brand. Whatever you call it -- soda, pop, coke or something else -- it's a bias that you may be surprised to learn that the generic tastes the same as your favorite brand.