all depends really some assignments can pay you $7 or $10 the most I ever made per assignment once was $50 for talking bout getting some insurance... And it's not just restaurants there are grocery stores, oil changing centers, even getting an eye exam and glasses, renting video's..
if it's okay (hehehe don't want to break the mod's rules) I'll post a link (none of them are referral links none of the links will provide me with any benefit)
and can I also say NEVER EVER pay money to be hired as an independent contractor real mystery shopping companies work legit like a real job..
http://www.volition.com/mysteryUSA1.htmllook down and to the left you'll see the companies listed by ABC order and you can check them out and apply and then see if they have any jobs available in your area always good to apply for many cause not all companies will have something for your area unless you live in a really big city.