Rooting hormone is generally very helpful. Also, I have found that wrapping the cutting with budding tape, as posted by Joe Real, is helpful in keeping the cutting form drying out, and improves success. However, if your Lazz, you can just stick a cutting in concrete, go on vacation, and when you get back it is rooted. He is amazing when it comes to rooting citrus.
Millet (1,293-) Susan B Anthony List - Washington DC -