1. *30% off business checks & accessories from Checks Unlimited. Coupon Code: 7486. Price: varies. Discount: 30%. Categories: Business Services. Coupon Rating: decent. Store Rating: 4 stars out of 5. Coupon Recommendation: recommended. Available Until: April 30 2016. Thoughts: Checks Unlimited offers over 70 varied personal check designs – plus a full line of address labels, check accessories, and business checks – all at an excellent value.