SUN-IN Deals to Lighten Your Hair for Summer! Do you like having a lighter look in your hair for summer? Let the sun do the work with this classic hair product for summer :) Grab a $1/1 Sun-In coupon and check out these deals: Sun-In Deals: at Walmart—$3.48 Use $1/1 printable coupon = $2.48 oop at Target—$3.52 Use $1/1 printable coupon = $2.52 View Post