What's the most underrated car feature you rely on?

I was driving home last night and realized how much I appreciate the simple, programmable seat memory in my car. It seems minor, but after my partner or a friend adjusts everything, one button puts it all back exactly how I like it. It saves that whole awkward shuffle to find the right position again.

It got me wondering what’s a feature in your car that doesn’t get much attention but you’d really miss if it were gone? I’m curious to hear what others find quietly indispensable.