I love my crappy little tarte burner that I bought at Costco years ago. It's ugly, filthy and a not my style, but I don't know what about it, it helps scents travel further than candle does. Sometimes though, I don't love the scentsy like cubes that Walmart and Target sell and want something more along the lines of my Bath and Body Works scents.
Well, when a candle won't burn down anymore and you're left with that little bit of wax in the bottom, pop the candle in the freezer for a few hours, use a butter knife to take out the wax and plop it in your burner! It's like a free tarte!
Right now I have my favorite, Marshmallow Fireside!!