Mystery shopping is another way to make good money. I personally knew a girl who was accepted as a mystery shopper but I have not seen her since. This is a good site to start signing up & receive jobs locally...it only works if you sign through all the offers so take advantage!
here's a bit from there site: "If you'd like to get paid for shopping and dining out in California, and earn good money (plus keep the things you buy for free!), then you need to join our site and get access to the 175+ companies that are hiring Mystery Shoppers! If you want a flexible work schedule, the freedom to pick the jobs that interest you, and very competitive hourly rates, you'll love the resources you find in our Members' Area."