Yes, I have gone door-to-door evangelizing many times. I organize a twice-a-year door-to-door campaign for my parish. Interestingly, we’ve never had a door slammed in our faces, and we’ve gone to about 2,000 houses in the past few years. In fact, when people realize we’re Catholic, they are usually relieved we’re not Mormon or JW and listen to what we have to say.
I’ve had both JWs and Mormons come to my house in the past. In each case, I let them give their “pitch” then I start asking them questions about whatever it is that they said. I typically guide the questions in such a way that we begin to discuss the authority of the Bible and where the Bible comes from - I have found very few people know the history of the development of the canon. Since the Bible is a common authority, I figure its good to focus on that.
I actually had one Mormon pair visit me about 5-10 times over three or four months. T
hey brought two of their bishops over that time, but eventually gave up on me as they realized I was just trying to convert them to Catholicism.