I love Yankee candles, but balk at their high prices sometimes, even though they're very high quality, and probably worth it. So I shop the Yankee Candle store at the mall and buy them when they're on clearance (like after Christmas, or discontinued scents). I've also become a fan of Candle Cappers, which are metal tops that fit Yankee Candle jars and regulate the airflow so that they don't develop that awful black soot around the inside of the jars.

Like this site says, I was skeptical at first, but I bought one, and then I went back and bought three more--one for the bedroom (apples), one for Bob's office (moons and stars), one for the dining room (trees), and one for my office (hearts). They work.