>>2887573 If I've already made the decision to shoot film it comes down to whether I want to carry a camera around or not.
If yes, I'll take my medium format camera
If no, I'll take my 35mm p&s that fits in my pocket.
Usually if I'm going on a hike or somewhere cool and already taking a backpack the medium format camera will join. If I'm going out for a couple of hours or doing something where having a backpack isn't necessary I'll just take my point and shoot.
Personally, I fail to see the point of using a big camera (SLR, big rangefinder, etc) to shoot 35mm...which is why I don't own one.