Save $4 On Your Favorite Gillette or Venus Razor Blade Refills, Courtesy of Amazon

If your razor of choice is a Gillette or Venus, Amazon’s shaving $4 off dozens or cartridge refill packs, for a limited time. Just find the one that’ll fit your handle, and you’ll see the discount automatically at checkout. You can also save a little more by using Subscribe & Save, though the coupon will only count…