Emergen-C is $3.99 at Publix. Stack a Publix store coupon from the Health and Beauty Flyer with a newspaper coupon to get two boxes for free!

Use two $1.50/1Emergen-C Vitamin Supplement Drink Mix, 10 or 30 ct from RP 12/8 (exp 1/31)
And use one $5.00/2 Centrum, Centrum Silver, Caltrate or Emergen-C, 10-220 ct, Publix Coupon from Health and Beauty Flyer

Final Price: Free, when you buy 2