I find that when I'm walking, I can't keep a thought in my head for very long. It's not meditation as such, but it does come quite close. Lately however...
... I find that things are getting to me again. Like they did back when I lived in Northern Ireland. Not as bad mind and not for the same reasons, but the grrr feelings are returning.
Don't get me wrong: I know a lot of people have the same or similar problems. But that doesn't make it a lesser issue. Not for them, not for me.
I walk. It clears my head.