The Jamba Juice buy-one-get-one-free deal is back at participating locations in California, New York, and Washington D.C.! This BOGO promotion runs from today (9/7/2012) to next Sunday (9/16/2012)! Plenty of time to get a couple of Jamba Juice drinks for you and a friend. Here’s the offer page & a list of participation locations. For your convenience, here’s a copy of the coupon below. Feel free to just show it on your mobile phone to the cashier. Or if you want to print it, just click on it for the…… (click read more!)