You can make your own dishwasher detergent?!

I just read about this today...I have not had a chance to try it but it sounds so easy and cheap!  And the best part is you use baking soda and borax...two things we already have in the house!  I use the Borax to make laundry detergent which you can find the directions to making here.  To make the dishwasher detergent just use equal parts of these ingredients.  You can add essential oils or one site suggested using sugar free lemonade!  I will just be using the Borax and baking soda.  What another great way to save money and reduce packaging.  I wonder if I could find a place that sells Borax in super duper bulk.  I should have a load to do tomorrow and will let you know asap how it went!!!