There are many benefits to signing up to be on company's e-mail lists, and/or Facebook pages. (In fact it's my birthday month, and I am starting to see lots of deals coming my way already! Yay!)
Here is an offer from Jamba Juice, that you might want to take advantage of...
Get a coupon for a sixteen size smoothie for only two bucks when you become a Jamba Insider! Click Here
This is available in certain areas, you can enter your zip code on the sign in page, to see if it is available near you.