LED Headlights installed..

Some people don't like the look of the LED's on their cars.

10-20 times brighter. Nope. Bright doesn't mean your eye can see what it's supposed to light up. I've had a couple of customers remove LED's for Halogens.

Relay kit and good halogens are a solid approach as well.

All depends on what you want on your car. Pick your parts, pay your money.