I personally have enjoyed working a direct sales/home based business on the side. I found a good, legitimate company with very low upfront costs/overhead. It has been a great experience. Just be sure that the company offers training and some sort of simple, step-by-step system and it helps if they are in the DSA Top 100– instantly proves their legitimacy!
I see a comment made by Stella including some freelance sites. This does work. I use oDesk and it’s been a big help in bringing in a little extra money. I also agree with some of the other comments that mention people should think of or view more ideas of making extra money, because it really is possible to make extra money instead of just sitting around moping about not having money to pay the bills or buy something special.