Posted: 14/07/2014 at 21:05
You just need to make sure that the cutting is kept moist, so if taking from plant to pot I usually put it in a jar of water until I plant it but only for a very short time.
The plastic bag (clear) goes over the cutting when planted in the pot after watering, use an elastic band around the pot to hold the bag. Keep in a greenhouse or window sill and remove the bag twice a week for just 10 mins to let it breathe and water if necessary as it needs to be kept moist. You can remove the bag when the cutting takes root.
Others may do it differently but that method seems to work for me.