Soap Nuts
There is a tree commonly called a soap berry tree. The tree produces a fruit. The outer casing of the fruit can be used to clean in your washing machine, and dishwasher. You can also use it to clean yourself in place of shampoo and soap.
Here is a link to a google search for "soap nuts".
Apparently these are popular in Europe. . . but they seem to call them "
Soap Pods"
I did some looking and there is a variety that is native to Florida. . .but I do not know if it has the same cleaning power.
More research into that is being done.
I did ask "he who knows these things" if there were any growing around Duval . . . "he" was not aware of any. . . so that pretty much means there are not. BUT good news. . . it is non-invasive!
I am planting a soap nut tree very soon. Have Fun!