This is how I do it. Anything I buy and cook for myself is vegetarian at a minimum, more often vegan (the occasional cheese dip and eggs for brownies slip through), but if I go out somewhere with friends and they don't have a good veggie/vegan option, I do eat meat. Likewise if I go to someone's house where they're cooking of preparing food. I've found this to be a really good compromise to it, and often only eat meat one or two meals a week.