I was concerned about being SCAMED, but I decided to try Mystery Shopping and signed up with Shadow Shopper. Yes, you can sign up for free, but that just shows you shops you "could have had", so I decided to pay a $9.95 for a "trial month". Well, I got LOTS of shops. I then decided to pay a one year fee, and then will cancel before next years fee comes due, as by then I will have enough companies to do on my own.
Well, so far I have been paid back 4 times what I paid to Shadow Shopper for the one year fee $99.95. And I have only been doing this for 2 months.
So far I have done, Universal Studios,(2 times) shoe store, banks, street fair(coming up) , grocery stores, clothing stores, retail stores, home shopping clubs,kids gym, Time Shares, plus I even got some merchandinsing jobs. I work full time, and do this on the side to see if I could quit my job to do this.
It takes awhile to get the money at first, but if you keep working at it, you should start getting it rolling in one right after another. To me, it was worth paying the money to them. It sure has paid for it self, many times over.
HAVE FUN SHOPPING.