Ending today at 9 pm ET, Shnoop again offers the Gillette Sensor Excel Razor Cartridge 40-Pack, model no. GSE40, for $43.99. Coupon code "thankyou" cuts it to $42.99. With free shipping, that's $1.07 per cartridge and the lowest total price we could find by $4, although we saw this pack for a buck less in July. These cartridges fit all Gillette Sensor razors.