After a great deal of experimentation in my "lab" (which looks a lot like my kitchen), I developed a cheap, easy to make fake "Jet Dry" type dishwasher rinse aid that works very well. It's natural and non-chemical, but you still need to keep it out of reach of kiddies due to the alcohol content.
- 1 cup white vinegar
- 1⁄4 cup alcohol
- 1⁄4 cup hydrogen peroxide (3%)
- 2 tablespoons citric acid
- Combine all ingredients. Fill dishwasher rinse container.