I use Hill Country Fare (H.E.B.'s brand) Ultra Antibacterial Hand & Dish Soap. It's a concentrated liquid dishwashing detergent. But I don't just use it to wash dishes. For more than five years, I've used it to wash my face and body.
I've had a number of people ask me, "What do you use on your face to keep your skin in such good condition?" I answer, "H.E.B. dishwashing detergent". I enjoy the look of shock and disbelief that results.