No, on an open road I ride/drive in the right lane except to pass. However, I've had the opposite experience of mamelukesabre: I usually encounter the idiot in the city who thinks the left lane is for faster traffic. Truth is that left exits are common in DFW, and the left lane is used accordingly.
Actually, you should never be in the right lane in DFW unless you're exiting, because right lanes turn into exit lanes and you will get stuck in an exit lane in heavy traffic at some point.
I rarely, and I mean rarely, speed in town, and I will ride the HOV lane at the speed limit, which seems to piss the occasional jerk off. The HOV lane is to ease congestion and requires multiple passengers or a motorcycle to use. The speed limit however, is still the speed limit.
In most big cities I try to stay in the middle lane on 35 unless I am exiting. But it is often hard to do because the roads keep adding lanes to the right and left, so one has to change lanes constantly. Terrible confusion downtown as one approaches 30. The first time driver staying on 35 to Waco can easily get in the wrong lane. Fact is that the road was never designed to handle the present amount of traffic. 35 probably should have followed the Loop 12 route, but I understand the merchants insisted that the interchange be put east of the river to bring cars into town. Ironically, almost all that business has disappeared from downtown.
Truth is that left exits are common in DFW
~~~~~~~~~~~~~~~~~~~~~~~
left exits are prohibited on eisenhower interstates and have been for 20 years. There are still a few around that are very old. Not very many though.