Right now I am enjoying the Pumpkin Harvest & Fall scent. (Note: Dear Febreze, there's no need to remove past season's scents from your website if they are still in store and still in season. It seems silly to me that you removed your Fall 2009 scents when you introduced your Christmas 2009 scents....)
Moving on.... right now these are $5 at Target and you can use a $2 off coupon from the most recent P&G coupon insert, making these $3, which is a FABULOUS deal.
I also picked up Cranberries &Frost scent, which I haven't burned yet, but it smells equally yummy. Same price, same coupon, hell of a deal!