The way I do a simple Abre Camino Candle Spell is to dress a 7 day (novena or vigil) candle with Abre Camino oil. I make a petition paper with my need and prayer to my ancestors and spirits and place the paper(s) under the candle and light it. If you need obstacles removed — do it. No need to wait for a specific day.
I use a 7 day candle but the choice of candle is yours. If you work with herbs, y can either poke holes in the 7 day candle and fill it with the herbs and oil, or take a free standing candle and roll it first in the oil and then in the herbs.
When I burn an Abre Camino candle, I dress the candle with road opener oil by placing 3 drops of oil in the candle every day that I burn it. I also like to carry a bloodstone and a skeleton key with me during this time. A bloodstone is used to help remove energy blocks in your system. Legend has it that the Blood of Christ dripped onto the ground when He was crucified and bloodstones were formed from His blood. The symbolism of the skeleton key is a powerful one for opening all doors for you.
It’s also extremely important to pray as a vital part of any hoodoo spell that you do. Here is the one I like to use for Road Opening:
ROAD OPENER PRAYER
I invoke the sublime influence of the eternal father to obtain success in all the subjects of my life and to smooth all difficulties that are in my way. I invoke the aid of the Holy Spirit, so that my house prospers and my company and my person receive a message of good luck, sent by the divine providence. Oh great hidden power, I implore your supreme majesty so that you separate me from danger, at the precise moment, that my way is illuminated by the light of fortune. I shall receive the infinite blessing of the sky. I believe in God all powerful Father, Amen!
For 2 Abre Camino Tarot Spreads, see this page at my website