Starting 05/14, Walgreens will have Gillette and Venus Disposable Razors Buy one Get One 50% off. Walgreens sells Gillette Sensor 3 Disposable Razors 8 CT for $7.99. Buy two for $11.99 after buy one get one 50% off sale. Use two of the $3 off coupons below and pay $5.99 for two or $2.99 each.