Cloning. Wow, this is one of those areas where everyone has a special trick... In my unqualified opinion, which absolutely nobody should take as advice or statement of fact, it's all bullsh*t. It's is without a doubt the number-one over-f*cked-with aspect of growing.
I've been taking clones for nearly 30 years, and after all that time I have settled on two techniques that have, over time, out performed all other approaches in both time to root and overall success rate.
My first, wildly complicated but oh-so-effective procedure, is as follows:
1. take cutting from plant.
2. plant cutting in coco.
3. keep warm and wet.
I literally just jab the cutting into a solo cup of coco. No hormones, no specialized "proper angles", scraping or rooting compounds. Usually takes about a week to see roots coming out of the drain hole in the cup.
My second technique is even more involved. In fact it is so complicated that I only use it in the rare case that the plant will not be grown in coco. I know this is complicated, but try to follow:
1. take cutting from plant.
2. place cutting in tap water
3. wait.
Keep the cut end from drying out, and the plant will do the rest. No magic potion needed.