I have one family from a recent shoot who would love to give out referral cards to help promote my photography biz. I was thinking of making biz sized referral cards that on one side would have a photo from the shoot and on the other side offer a special promo like 15% off their session. I thought this might be a great way to get more word of mouth advertising from previous clients and be able to offer back $$ to the client handing out the referral cards that is good toward a future session. What do you think of this idea? Has anyone done this before? How did it work out?