Let's forget for a moment that we're probably not as good behind the wheel as we think we are - and focus instead on other people's failings. For my part, I'm constantly monitoring the cars around me on the road for what I call "lane selection fail" – the idea on the part of some drivers that those dotted white lines somehow don't apply to them.

It seems that the number of drivers who attempt to merge into my ride on a daily basis has been compounded by the growing percentage of people who are twiddling on their cell phones while simultaneously attempting to drive. So I consider it a necessity to remain ultra-vigilant against lane-wanderers, though it still bugs me every time I see people who are apparently too distracted or too important to stay in their own lane and not cause a wreck. I mean, how difficult is it, really?

How about you? What's your biggest traffic pet peeve, or the habit that bugs you most when you see it in other drivers?