The only ingredient you need to use in your dishwasher detergent

 
The ONLY ingredient you need for homemade dishwasher detergent | Cellist Goes Green
 

After trying several different recipes for homemade dishwasher detergent, I was left feeling frustrated by my sort-of-clean dishes, and the multiple ingredients (and time) needed for making these recipes.  If you do a quick search on Pinterest, most results for homemade dishwasher detergents call for a mix of washing soda, borax, salt and citric acid.  Lots of ingredients for a less than reliable result.  Our flatware particularly was coming out less than clean.

I continued to search for a solution, and stumbled onto a very interesting article from Little House in the Suburbs.  The author did some research into ingredients used in commercial dishwasher detergents.  Several interesting points were made, including the fact that salt reacts with stainless steel, which is probably why my flatware was not getting clean. 

 
The ONLY ingredient you need for homemade dishwasher detergent | Cellist Goes Green
 

So what do I use in my dishwasher now?  Washing soda.  That's it.  It gets the dishes AND silverware clean.  I don't need multiple ingredients, and I already have washing soda around because I use it to make laundry soap.  I throw some vinegar in the rinse compartment, and that's it.  A much simpler solution!

What does everyone else use in their dishwasher?  Has anyone else had problems finding a reliable recipe for dishwasher detergent?