I have been having good success cutting leaves off of an aloe plant, poking a hole in the cut surface to mash the pulp a little bit, and dip the cuttings into the pulp. I also dab a little of the aloe pulp into the medium the clone is going into, whether a rapid rooter or coco-perlite-soil. I bought the aloe plant at home dopey, and have cut a leaf off for each cloning session. I'm still new at this, but getting really good results.