I usually buy a bag or two at the supermarket and throw them in the bottom basket of our upright freezer in the garage. I downsized my ice chest from 48 qt. to 24 qt., which holds enough G2 and Colas to last me for two days and is the perfect size for only one 7 or 10 lb bag of ice poured on top of the drink containers.
It's hard to believe that you guys are trying to save a dollar on your ice, but very willing to buy $400 rods and reels...for which you pay cash.