I am a granddaughter of the depression. A true mix of Chuck and Beth Vaughan a frugal engineer and an eccentric artist. Grandpa could calculate to the bean the best value for a can of kidney beans.
I carry on this trait as I often waive crowds by as I stand with my calculator in the grocery store.
So there has been a lot of chatter about making your own laundry soap. A friend was recently shocked to learn I don't make my own... I gave it a whirl a few years back and hated it! It was snot like, required an afternoon to prep, and left clothes smelling sour sometimes and was just to inconsistent.
But it's cheaper you say... oh my friend... get your calculator ready!!!
If you follow the most popular version of the homeade laundry soap recipe found on Google it equates to roughly 7 to 9 cents per load. Let's also factor into this the gathering of pots, buckets, cheese grader, etc. To make it and roughly an hour prep and clean up.