To market my studio, I frequently donate a certificate to charities as a door prize or auction item. The certificate is generally good for a 1-hour sitting and an 8X10 color print. The certificate has some smaller print which includes a statement indicating the print does not count towards other discounts. A recent certificate winner decided not to order a 2nd 8X10 because the 8X10 certificate print would not count towards her 2nd print discount. She thought since the certificate got her a free 8X10 that she should be entitiled. I stood my ground and lost the 2nd 8X10 print. I guess she showed me?? Some times ya just can't win.