Some online flowers are offering coupons. If you have time, buying flowers at Costco may save some more.

Kabloom (http://click.linksynergy.com/fs-bin/click?id=x/BrVFQj6PU&offerid=58984.10000110&type=3&subid=0)
15% off - SPOOFEECOM
15% off - MDVIP

1800-Flowers (http://click.linksynergy.com/fs-bin/click?id=wj2NA8eP7ls&offerid=45935.10000457&type=1&subid=0)
15% Off - VCOM