My title has the 3Fs, but the deal is from 3M. Send in this mail-in rebate to get a free filter (up to $19.99). I know the snazzy filters run around $15 for me, so this is a great giveaway.
And this morning when I stopped at Starbucks to celebrate my recovery from the creeping crud(s) that have plagued me, they had a stack of coupons on the counter offering buy one-get one free coffee on weekends in September with the coupon. Bring a friend — and your own cups!