Register on the Just for Men site here to print out your coupon for $2 off any shampoo-in hair color and $2 off any brush-in facial hair color gel.
Take the coupon to your local CVS, where you can pick up a pack of Just for Men color gel for just $8.99.
Then use this $9.50 rebate for a full refund of your purchase price, plus a little something extra!
(Thanks Fat Wallet!)