Check your ibotta offers for WM. I have $2.50 off of 'Glade Products', and one of the qualifying items is 'Glade Plugins Scented Oil Warmers, 2 ct' Not sure how much a 2-pack is since my store does not carry them.
I must have like 25 of these already. ( I need to donate some of them). I actually passed on it this time, because I figured I didn't want to pay the 12¢ tax.....lol