For only $5 you can get $10 worth of food and drink at Jamba Juice at 500+ stores nationwide – that’s 50% off! Forgive my failing memory but one of my readers expressed that they just discovered the goodness contained at Jamba Juice. Well now’s your chance to ‘splurge’ at half-off. Deal ends 12/28 but you can use the voucher until 3/26/12.