FREE Us. Razor Kit or Refill Cartridges at Dollar General Posted On November 20, 2020 Possibly get a FREE Us. Razor Kit or Refill Cartridges at Dollar General! Check your DG app to see if you have a coupon good for $9 off a Bic Us Razor Kit or Refill Cartridges. If you do, just redeem in stores, making it free after the coupon!Note: This offer may not be available on all accounts.