4packets of sugar free lemonade Kool-aidor you can use citric acid
Mix all ingredients together and keep in some kind of container. It could be a super cute old mason jar like mine :) or just an empty detergent box you have.
To use: Place 1 Tbs in the pre-wash (open cup) and 1 Tbs in the main wash (closed cup). I found if you put a squirt of Dawn or some other brand in the main wash container it makes your dishes much more sparkly!