I hate water spots, whether on glass or finish. Also doggy drool on the door (inside and out) after I take 'mutt breath' for a ride, but he loves it, and I love him, so ...
I use Optimum No Rinse on door jams, I don't get it all, but they look decent after, but I'm not a pro. I've also used the cleaning wipes on door jambs, not great, but an improvement.
After the detailing bug has infected you, you'll not be satisfied until the vehicle is 'perfect', but it will still look better than most other ones on the road.