What product substitution has become the norm for you?
I ran out of liquid shower soap (OK, "body wash") and since Suave Daily Clarifying Shampoo claims to wash away excess surface oil from hair without drying it out, I figgered, hey, worth a try.
When I lathered up my face, the lather was just astringent enough to let me know it was actually doing something whereas shampoo-plus-conditioner products feel slimy on the skin, even after you rinse.
Never went back to body wash. And you?