I've been a member of Mypoints since 2005. I don't buy any crap or sign up for any "free trials", nor do I spend hours filling out surveys.
But I earn about $25/month free money by clicking some links and stuff. Pretty easy money.
If you sign up through me, I get credit.
If you're busy and making good money, this probably isn't for you. If you want to turn a little bit (10 min/day?) of your free time into cash, this is for you.
You can earn points by scanning your grocery receipt too. If you spend money (gift cards, etc.), you are even more likely to easily earn money.
But even teens, unemployed, retired folk can turn this into cash. https://www.mypoints.com?