Posted By North Star.
Try a tablespoon of vinegar in the dishwasher rinse - it's a lot cheaper than the commercial rinse aids.
Run 1/8 cup citric acid crystals through a dishwasher cycle to get rid of any brown spot build up.
Save energy by turning off the heat dry, and poppin open the dishwasher to let the dishes air dry at the end of the wash and final rinse cycle.