Once upon a time I got pulled over because I didn't have my headlights on while driving. That's the law around here. I normally have them on but this time I forgot. A few $ poorer I decided I should have a thing to turn them on for me.
Then I remembered that anything worth doing is also worth overdoing so I ended up with this:




The DRL idea was actually copied from Mazda who, in some cars, also has the high beams run at partial power as DRLs. So if it works for them, it works for me. The rest are just what I've seen newer cars do.