3 Musketeers only $.39 at Walgreens starting Sunday January 11, 2013 by Print this coupon and get ready for $.39 3 Musketeers bas at Walgreens next week: Buy (3) Mars Brand 3 Musketeers Bars – $0.59 each Use Buy 2, Get 1 Free, 3 Musketeers Bars Final – $0.39 each after coupon wyb 3 Thanks Common Sense with Money!