Nine West and Soles4Souls

I don't need any more shoes but this sounds like a perfect reason for me to visit a Nine West store. I wonder how many I can donate and if I can stack those coupons.

"Visit any Nine West Speciality Retail Store in the U.S. between 9.9 and 9.24.09 to donate a gently used pair of shoes (women's, men's and kids) to Soles4Souls. As a thank you, we'll give you 15% off your purchase to be used that day, or you can save it for use until 10.30.09 (online and in stores). See a sales associate for all the details on the coupon. "