Easy. Those dolts who drive slow in the left lane and don't get over. Folks....please. Use the left lane to speed up, pass and then get back in or slow down again in the more right lane. These dummies get out in the left lane on cruise control and just sit there because they think because they are doing the speed limit they have some right to hold up traffic. Bores.
You can help the HubPages community highlight top quality content by ranking this answer up or down.