Staples has 20% off $100 or $50 itunes gift cards this week.
http://www.staples.com/100-iTunes-Gift-Card/product_970602?PID=6156980&storeId=10001&AID=10428703&SID=in58k5atiw00xjf5009bn&cm_mmc=CJ-_-6156980-_-6156980-_-10428703&CID=AFF:6156980:6156980:10428703&CJPIXEL=CJPIXEL