Best thing to do is this:
After completing an offer, top right of each one is a tab that reads
MARK. Clicking on that will let you know that you've already done this offer and will turn that offer from white to
green.
You can click on the link that reads
NEW (right below the Free/No CC offers link), to see New offers that have posted.
FC adds new offers, tries to, every few weeks or so. Sometimes sooner. They try to get us the best offers possible through advertisers that have a good payout history b/c afterall, if FC doesn't get paid, we don't get paid. As we are making our money b/c FC cuts us in on their bounty through advertisers paying them for finding them potential customers!
FC did however, a few days ago, added new offers listed under the
Holiday Cash Back Shopping.
Hope this helped & Best of luck to you.