Checks in the Mail takes 22% off personal checks via coupon code "DEAL22". Plus, all orders qualify for free shipping. (Select "Non-Trackable Mail" during checkout.) Discounted items include 100-, 200-, and 400-packs in single or duplicate styles.
Note: Fraud protection adds $4.49 per pack, so be sure to uncheck it if you prefer to opt out.
These freebies are available to anyone with an internet connection — including those without an Amazon Prime membership.