As Iyaz sings, no one wants to walk the earth s-o-l-o. Place a few friendly Red Solo cups full of water in your roommate's room to keep him company. Then pat yourself on the back. You're just being a helpful roommate. These Red Solo cups are anything but solo. It's quite likely you have a few of these classic cups lying around your pantry. Grab them and decorate away. Place cups on the floor, closet, nightstand- any flat surface, really. Try your hand at impromptu art while you're at it. This guy made a mini cup pyramid at the foot of his roommate's bed.