For about 2 years, VDOT would put "the left lane is for passing not cruising sign" on the crawlers over the length of 66. It did nothing. Five days a week I am stuck behind some dumbass that is cruising in the left lane. You can literally see traffic stacked behind them. For many, there is no amount of flashing the high beams that will discourage them from moving over. If I was in charge of Driver's Ed, the two things I would hammer into peoples' heads is get out of the mf left lane and how to zipper merge from a cloverleaf. That's my other big gripe on my commute to work. When you are merging onto 28, no, you do not have the right of way as I am trying to get off. There is a giant triangular side that says "YIELD" on it. Read it, heed it, and do not cut me off.