Here is a clearance deal you can keep an eye out for at Rite Aid:
Robitussin is clearanced to $3.69 at some stores. There were several types of the Peak Cold available. Starting tomorrow, there is a $3.00/1 Robitussin Coupon available in the ad.
Here is a deal idea:
Buy (1) Robitussin Peak Cold Products $3.69
use $3.00/1 in ad coupon (4oz, Tablets or liquid gels)
use $1.00/1 printable coupon (adjusted)
Free after coupon