MagicMtnDan
FRF Addict
The vast majority of drivers set their side view mirrors to show traffic far back down the adjacent traffic lanes.
If you set them properly they'll cover your blindspots! That way if you don't see a vehicle in your blindspots (or in your rearview mirror further back in either lane) you can do a quick lane change.
Once you get used to this you'll wonder how the hell you ever went without them set this way.
How To: Adjust Your Mirrors to Avoid Blind Spots - Feature - Car and Driver
If you set them properly they'll cover your blindspots! That way if you don't see a vehicle in your blindspots (or in your rearview mirror further back in either lane) you can do a quick lane change.
Once you get used to this you'll wonder how the hell you ever went without them set this way.
How To: Adjust Your Mirrors to Avoid Blind Spots - Feature - Car and Driver