Just got an email from Zax's, after sign up for their freebie Heelspur cream offer. They are now offering 4 printable coupons on their website:

$2.50 Heel Spur Cream
$2.50 Bruise Cream
$2.50 Kids Bruise Cream
$2.50 Dark Spot Cream

Didn't print any myself so not sure of expiry/restrictions.

Link is here: http://www.zaxhealth.com/Zaxs-Original-Cream-Coupon/

Enjoy!