L'oreal Excellence To Go .19 cents at Walgreens

I was looking for some L'oreal Excellence To Go Hair Color (for my grandma) and discovered that some of the colors are discontinued.  All of the discontinued colors are on clearance for 2.69.  If you use the coupon for $2.00 off of any L'Oreal Hair Color Product (RedPlum 2/20) it makes it only .69 cents.  If you buy two and use the $5.00 off of any two L'Oreal Hair Color Products (RedPlum 2/20) it makes it .38 cents for two boxes!!! That is .19 cents a piece!!!