1963 Dart 170 2 Door Post Resto

When you guys are painting your car in your garage, how much overspray are you getting on everything in the garage? Or are you draping painters plastic over everything?
A lot of purists aren't gonna like my answer here but it works for me.
1. I open the big door to the garage and the back door to cause a cross flow of air.
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2. I pick a day when the weather is going to cooperate. The wind has to be out of the north or northwest, or calm. Not a humid day. For instance, today wouldn't be a good day to spray for me because the wind is coming from the south and in through the big door. The only overspray I get from a HVLP gun is on the floor. When I used a Binks #7, suction feed gun I had overspray everywhere. Had to cover everything with plastic and hang plastic from the ceiling all around.
I've painted a lot of stuff over the years, boats, cars, locomotives, and things have changed quite a bit.