This freebie requires a bit of work, but if you are up to the challenge you could score a FREE sample of Crystal Light Energy.
You will need to complete four rounds of the Crystal Light Energy Dash on Facebook (took me around 2 minutes) to claim your sample.
It looks like there are around 19,000 free samples left as of right now and when those are gone, you can get a coupon via mail.
Thanks, Passion for Savings!