The following is a simple yet effective ceremony for the cleansing and purification of a home, sacred space or an object such as Tarot cards. 

Supplies Representing the Four Elements:

bowl or chalice with spring water (available at grocery or health food store)=WATER
sea salt = EARTH
incense burner/charcoal/incense = AIR
white or lavender candle = FIRE

Begin by setting up a small altar with the above supplies. This can be a coffee table, end table, kitchen table - it doesn't matter. Take up a small pinch of salt and meditate briefly on the positive qualities of EARTH (stability, grounding).

Place 4 pinches of salt into the spring water and meditate on the positive qualities of WATER (calming, emotional clearing, psychic awareness).

Light the charcoal and place it in your incense burner. It is recommended that you insulate your burner with kitty litter or sand as you will be handling the burner.

Let the charcoal light all the way across and place a small amount of incense frankincense is a good all-around incense/a mixture of frankincense and white sandalwood is very uplifting/a blend called Purification is also very good on your charcoal.

As substitute for incense and charcoal you may prefer a sage smudge stick as a purifier from the Native American tradition. As the smoke curls up meditate on the positive qualities of AIR (mental clarity, alertness).

Place your candle in a holder and light it. Gaze at the flame and meditate on the positive qualities of FIRE (purifying, transforming). 

Proceed now to cleanse the space or object.