I HIGHLY recommend that you start a seperate e-mail before signing up for these. Otherwise you will be overwhelmed in your regular e-mail with all of your offers and surveys.
I have been with MyPoints for a few years now and LOVE it! It’s so easy and takes a few seconds to earn gift cards to lots of different places! I usually get the Red Lobster cards, and we get to go every other month or so and barely spend anything! All you do is click on links in the e-mails they send you and you earn points, you can also take surveys and shop at select retailers online to earn points.