I tend to drive about 70 MPH or what I term is "The speed of the road". One important point to make is that every road and situation calls forth its own speed, and if you are going below it you are just as much an impediment to flow as if you are one of those lane weaving troubleseekers. In the motorways (divided highways) unless you are passing, you are not to be in the left lane if you are in the US or the right lane if you are in the UK. Too often the passing lane is plugged by some yob who fancies he or she likes all that lovely space but doesn't see that by not advancing they are keeping behind others who wish to pass.

If others want to drive above the speed limit, best policy is to let them, after all they won't be in your way, they are getting out of your way.