Yankee Candle has a coupon you can use to get two free candles with the purchase of two, which you can print from HERE (Facebook page). This coupon can be redeemed at your local store, or you can use it online when you enter the code 4FALL at checkout.
Just add 4 candles to your cart and head to checkout. Once you enter the code, the price will drop:
This coupon is valid only through tomorrow, September 27, 2014.