Need an extra monitor for laptop productivity while you’re out and about? There are slim, portable monitors for that! And some of them are really affordable. I mean, this 15.6-inch portable monitor is down to just $66 on Amazon, a huge drop from its regular price of $136. Now that’s a bargain! To get that price, be sure to click the coupon box for another $24 off. Featuring a 1080p IPS screen with a wide viewing angle, this portable monitor promises great visuals, excellent color, and clear images. Whether it’s to extend your laptop’s screen space or watch videos from your phone in bigger deta…