I responded to another thread by a Lia Sophia rep who was looking for advice because her business has stalled. The overwhelming response on that thread was that Direct Sales are hard, and the jewelry market is even harder. It is oversaturated, and LS jewelry is expensive costume jewelry. I went to 1 LS party 8 years ago, and hosted 1 party. All the stuff I bought either broke or turned green after less than a year. I got similar complaints from my friends who also bought LS jewelry.
There are much better and more fun ways to earn extra money, but if you are set on Direct Sales, find a product that is new, consumable (you have to buy refills) and doesn't have many reps in your area.