I buy a Eco friendly and very affordable detergent from Costco. I need to use such a small amount even for a large load the jug lasts seemingly forever. So I don't feel the need to do up a homemade detergent.

When it come to softener though. Vinegar. It works, it's cheap, I can also use it for other household cleaning. Cooking and baking as well of course. You can't use if for loads that need bleach and use with fabrics that have a lot of elastic material can decrease it's life span. Overall though it works great dissolving soap and detergent residue that can make clothes feel stiff and scratchy, and less prone to lint and pet hair cling. Can help with odor and colour brightening too.

I will happily continue to be a millennial who ruins industry on that front.