Stop in for a cup of coffee

At the first angle. Like the quarter flange in the door jamb, tape it at the back edge. Across the rocker below the door there is really no good way because you need to keep the paint line inside the door with it closed. I'll Take a few pics later so you can see what I'm talking about.
OK, I know what you are saying, but I think I will go with my original plan. I'll have a slight line about 3/8" in. Paint will get in that far without opening door. I'd rather that so I can focus on doing the outside. If I start opening and closing doors, I am asking for disaster. Should be close match, I painted the jambs last year.
What do you think of Ray's idea to just let the overspray hit it -no tape?