1. Using an old plug in, take out the wick and rinse out the bulb 2. Find an oil you like and pour it in the bulb 1/3 or 1/2 to the top 3. Fill the rest of the bulb with water (but not too far up as it will spill when you insert the wick) 4.Replace the wick 5. Put the bulb back in the plug in and Voila!