In December, Jamba Juice launched a special weeklong $1 deal on oatmeal. The sale must have been a success, because the smoothie chain has just announced plans to offer $1 oatmeal every Wednesday for the next month. The promotion, which supports healthful eating at a wallet-friendly price, starts today and extends until Feb. 3. No coupon is necessary, and most Jamba locations are participating. Have you had Jamba Juice's oatmeal? Will you take advantage of the deal?