Homemade Liquid Laundry Detergent, Less than $2 for 5 Gallons!- best homemade liquid laundry soap ,Sep 14, 2012·THANK YOU!!! This recipe is the BEST. We do a LOT of laundry. Each of us has noticed that this liquid laundry soap gets our clothes cleaner than the store bought stuff. We have very hard well water so I add 1/2 cup to each load, plus I use distilled water to make this. Just love this laundry soap!Homemade Liquid Laundry Detergent Recipe {BEST Laundry Soap!}Aug 16, 2010·Homemade Liquid Laundry Detergent Recipe {BEST Laundry Soap!} I may get paid for ads or purchases made through links in this post.. August 16, 2010 By Heidi 306 Comments