Your candle should burn evenly.

When you light a candle for the first time, let it burn for a while. You want to ensure the entire surface of the candle melts before you put it out. If you don't, your candle could end up with a rim of solid wax that never ends up melting, called tunneling.

Trim the Candle's Wick.

Before you light your candle, check your wick's length. If it's longer than the recommended 0.25 inches, use scissors (or a wick trimmer) to neatly trim it. Keep in mind, a too-short wick can get lost in the melted wax.

Putting Out Your Candle.

When blowing out the candle, do it carefully. If your candle came in a jar, you can put it out by placing the lid back on. Or you can invest in a proper snuffer. You can blowing the candle , but should be done carefully.

Keep the Candle Clean.

Once you've used a candle a few times, you may notice that soot and other debris have accumulated inside the container. Clean this gunk out the moment you see it.

Stop using your Candle With Wax in It. 

You should stop using a candle before it completely runs out of wax. Other wise, it could overheat its container, which could damage the container. Remember, you can always clean out the wax and reuse your container.

Let the candle Burn for About 3 to 4 Hours at a Time.

 If you go too short, your candle may tunnel, or it may not smell very fragrant.

Don't put the candle in a Windy Spot. 

Wind can cause your candle to burn unevenly, which can lead to tunneling.

Once the candle is lit, do not move it.

Moving a lit candle can cause hot wax to spill on you or surfaces causing burns or fires.

Put the candle on a Heat-resistant Surface.

This one may seem obvious, but it bears repeating. Be sure your candle is on a steady, heat-resistant surface before you light it. Otherwise, you may damage your furniture. Keep your candle away from flammable objects, kids or pets who might knock it over.