Anointing and dressing candles:
--When doing a spell to bring something to you, rub the oil from the wick to the end of the candle.
--To banish and/or repel something from you, rub the oil from the end to the wick.

Inscribing the candle:
--Use the same directional procedure as above.

What to do with candle drippings:
--Save 'em! Carry them with you in the bottom of your purse, coat pocket, or in a consecrated witch box. Unless the spell was for banishing, and in that case, get rid of them as soon as possible.