My week-end commute is my favorite. Half my commute goes through an industrial area and there's hardly any traffic on week-end. Another reason is I like being off during the week so there's less people on bike trails and parks (I do nature photography).
Today is a great day. I did some scouting yesterday and came to work on a new route this morning. It goes through a train yard and the streets aren't on any maps so I never bothered giving it a try. It's 2km shorter but I don't save much time because I have to dismount and walk on a pedestrian bridge to cross a freeway. It's much more enjoyable though. No more pot-holed freeway service road with trucks going twice the speed limit. A long part of my new route has pavement that's as smooth as it gets. I also has large speed bumps which slows trucks but not bicycles. This new way across the freeway opened up another route. I'll see tomorrow what's it's like with real traffic.