Make sure they look into you r neighborhood for possible wind borne exposures. While in a short column I can't give you the recipes in my books, I can offer you one example, that of how I translate the GRAS guidelines for cleaning. With four basic ingredients I know you can clean everything in the house. Mixing up face creams or wood stain isn't much different than cleaning the windows with vinegar, soap, and water instead of using Brand Name X, or making a cake with flour, eggs, and milk instead of using a mix. With a few simple staples we can clean our houses, wash our hair, rid the dog's bed of fleas, and do many other things too.
Most people have some practical concerns about living without standard commercial products.
These are all legitimate concerns, but basically, I suggest you just jump in and try it. I ve never once had a person tell me they've regretted it. Mostly, people tell me that living in a less toxic home improves their sleep, makes their babies less fussy, improves their children's concentration, and improves their sense of wellbeing. We are at an odd time in history. With the advent of the petroleum age around WW II, one man-made chemical was produced that hadn t stood the test of time, and then another, and then another.