Of course I never carry all that stuff... Depending on the mood, I pick the MM - most of the time fitted with the APO-Summicron 50mm. For landscapes, the M with either the Summicron 35 or 28mm would be a nice pick too. Portraits ? Summilux 50 or Summarit 75 would be the good answer. And of course any combination of the above. I use a very small bag allowing 1 camera and 2 lenses.
If I find a solution tomorrow to carry just a camera and a lens in any kind of flight bag, I would go ahead and take only that combo rather than having an extra (photo) bag to carry. But that magic flight bag doesn't exist yet !
The "all condition" optimum combo, unless you know that you need a specific lineup for a specific set of photos, is the M and the Summicron 35mm. No doubt you can do anything with these two.
I was looking for a smart solution to have a few pictures on the web, so that friends and relatives could have a quick look on what was new. Discipline sounds like the keyword: when you have thousands of photos scattered on several computers and disks, you know it would take so much time to put it all back together that there is absolutely no chance you would do it.
I gave a try to several solutions to drop the files somewhere and have them organized almost automatically, the idea being to choose in which section of the gallery they would go, and let the gallery do the rest (resizing, sorting, etc.).
Sounds like Zenfolio does it, so let's try this for a while, we'll see how it goes...