Hurry and print these high-value $3.00/1 coupons for Robitussin, Advil and Children’s Advil products! They do not have size restrictions and will probably disappear quickly. Use the coupons at Walmart where there is a large variety of low-priced items from which to choose. For example, a four-ounce bottle of Children’s Advil is $5.67. After the $3.00 coupon, pay just $2.67.