Through 5/24, save $5 off a $25 purchase of Procter & Gamble Products with code 7CBEDBEF at Drugstore.com. A best bet is to add two sets of 3-Pack Oral-B Professional Care Floss Action Replacement Brush Heads to your cart, and clip the $3 off coupon on the product page. This drops the price from $33.98 to $30.98 to $25.98 with code, which works out to $4.33 per brush head. Plus, shipping is free. The best price we could find anywhere else for this quantity is $34. Choose from five different brushes that can be found here. There is no sales tax (except IL, NJ, NY and WA).