One Finger Discount is offering 20% offer many popular mac applications. To get discount, use coupon code: OneFingerDiscount at checkout. Some developers are unable to use the OneFingerDiscount coupon code, but the company link should point to their coupon-discounted store page. If you have trouble, contact the specific company in question to make sure you get the discount. Tilese include 1Password, BlogAssist, CleanMyMac, iPhoto Library Manager, Mail Act-On, MarsEdit, Overflow, Sandvox, and much more. Participating companies are being added all the time, check back often!