Can you really earn money working from home?

Okay so since I have found a little unfortunate extra time on my hands I decided to check out some of the rewards/ work from home sites that you hear about. I would like to see if: 

1) The sites actually work as they are suppose to ie you earn reward credits or cold hard cash deposited into your PayPal account. 

2) Will any of these sites be able to add to our household income in any sort of significance?

3) Will the time spent earning the rewards be worth the rewards.

My goal is to see how many sites I will have to use and how long it will take to earn enough to pay for a night out at a restaurant.

I will update this post as I test out some of these sites.  Currently I am working on:

MyPoints.com

Swagbucks.com

More to come ...

Cheers,

OB