How to keep my car clean?

So I have learned over the years that if I keep my space clean and organized, my mental health is so much better. I do really well with keeping my house this way but the inside of my car is a whole other story and it drives me crazy.

I frequently end up eating a snack and drinking a soda on my way to work. I finish it, go in to work, then forget all about the trash from my snack when I get back in my car. By that point it's dark outside and harder to see that the trash is there, so I end up leaving it in the car. Eventually my car is a mess. Empty soda bottles and granola bar wrappers all over the passenger seat, crumbs everywhere. It's so gross. I hate it.

I have bought a trash can for my car but forget it's there, and when I do good about remembering it's there...I still forget to empty it which defeats the purpose.

Does anyone have any tips for remembering to grab my trash when I get home each night? I really wanna keep my car tidy and fresh.