I checked out my local Walmart last night for the first time since we moved and found a nice little deal on the Air Wick Scented Oils i-Motion Starter Kits.
They were on an end cap for $5. I used my $4/1 coupon from the SS 9/13 insert to score mine for $1!
I already have one of these and love it. Makes my new house smell sooo pur-dee!