Amazon with THINKWORK has the THINKWORK Heavy Duty Retractable Utility Knife with Non-Slip Grip, Quick Change Blade for $9.99 - 50% off with coupon code R5656KVF at final checkout = $4.99 with free shipping on $35+ or with Prime.

Amazon promo codes don’t always work on the first attempt. Try refreshing the page and re-entering the code.