Then take half of your advertising spend and redirect it into market research. (I.e. add on the bottom of your purchase receipts, email marketing blasts, etc, s

Then take half of your advertising spend and redirect it into market research. (I.e. add on the bottom of your purchase receipts, email marketing blasts, etc, something like "$10 coupon if you tell us something about yourself"; where "something about yourself" = "which if any of these advertising campaigns did you actually see.")