http://www.hfqpdb.com/coupons/30_…06.844.JPG
Harbor Freight Coupon: Any 5 Items Under $ 10 30% Off (Valid Through 1/27)

Yes you read that right 5 items in a single transaction.

In store only and simply show them the coupon on your phone or printed copy. Sometimes if you simply just tell them the code numbers that will work as well.