If you are a "CVS Advisor" check your email. I just got a survey offer for this weekend that is paying $10 in ECBs!
If you would like to earn a few ECBs for filling out an occasional survey click here to become a CVS Advisor. I signed up a couple years ago and have earned about $30 or so worth of ECBs for filling out a handful of surveys. Just another perk from my favorite store!