But the neat freak in me gets uncomfortable when they start to warp and droop. I never know whether to pick off the excess wax or wait to see how long it can burn without caving in on itself. It both fascinates and frustrates me simultaneously. I much prefer a brand-new neat candle with a flat top and thus used to throw my candles away prematurely...until I found a way to keep my candles looking new until they are all used up. Best of all, it takes just a few minutes and doesn't make a huge mess.
First, lay your candle on a cutting board and use a sharp knife to cut off the droopy wax. Try to make the cut as level as possible across the candle, but don't fret if it isn't perfect. If you accidentally cut off the wick, use the knife to dig it out a bit. (I accidentally dug a bit more out than I had intended but was able to put most of the wax back in without it looking too bad.)
That's it! Turn your candle over and let it cool. Turn the burner off and allow the wax in the pan to cool until it is solid enough to easily remove the foil from the pan and throw away.