I have mentioned Plink in the past.  It is yet another great way to earn freebies!  If you are not yet a member now is the time.  They have a great offer running through this Sunday.  Sign up HERE and then make a purchase at McDonald's by this Sunday and you will get $10 in your account which you can then convert into a free gift card!  

Plink works by tracking your purchases, so you will have to give them your bank account information, but I promise it is legit and secure.  I have been a member for almost a year and never had an issue.  You choose stores that you shop at frequently and whenever you make a purchase you get points, so easy!