Wrap in foil or plastic before refrigeration to prevent wicks from absorbing moisture. Before a party, light and extinguish candles. They will light more quickly and easily later. Long and crooked wicks can cause uneven burning and dripping. Always place candles in appropriate candle holders or bases.
Drafts can cause rapid, uneven burning and excessive dripping.
Burn candle one hour for each inch of diameter, every time you burn. The flame needs time to soften and melt the wax to the outer edge. Burning for less time will cause the candle to bore a hole down the middle, and give you less burn time. If you are burning a 3 inch diameter candle, burn it for 3 hours at a time. Occasionally rotate the candle.