Loving these free cat food coupons

Just got my third coupon for a free bag of Purina cat food. They're taking 7-8 weeks to show up, and about the same or a little less to accrue. I'm not doing any of the tasks that actually require writing or anything, since that doesn't seem efficient, but am logging in most every day (usually at the same time I do my searches on Bing rewards) to click on the stuff, plus entering two proof of purchases per month and periodically having friends sign up via my post. Oh, and clicking on their e-mails gets you points as well -- just be sure to use a second address for your various promotions, or else you'll be swamped with spam.