I am self employed, and now that business is slow, I can earn as much extra income as I want mystery shopping. My goal is to consistently make $100 per day. I only accept shops that pay $20 or more, and I don't conduct shops where I have to spend any money up front. Occasionally I will do an upscale restaurant shop, just because I will get reimbursed for a dinner I would have had anyway. The majority of my shops are apartments, new homes, cellular, electronic stores, or any shop where I only need to make an iquiry, not purchase anything.
I have also accepted a regular part-time job merchandising at Circuit City. It pays $12/hr. and I work about 40 hours per month. I hope to find a few more jobs like it. I got this job through Shadow Shoppers.