I manage twice as much going to home/work walking. It's a luxury I get and I understand not everyone will get it, but I've been surprised by how many people tell me to take the bus.

For the record, I live about 20 (~100m) blocks from work, and it takes me 20-30 minutes. Since everyday I go with a backpack full of stuff (notebook, paper notebooks, a few books and a table), I'm also carrying 5 to 7kg of extra weight. And I try to never use the elevator, since it's just 3 floors up and down (on rare ocassions do it 2 or 3x in the day, but over a span of hours).

While all this seems exceedingly little, in the end it adds up so that I "don't do excercise" but I still keep a baseline shape. And I'm totally amazed at how many people will frown upon even doing as little as I do on a daily basis.

Exactly. Without trying you get double the recommended minimum cardio. I can't imagine how people can go about their daily business and not cover it.

Strength is trickier. Nothing in my day to day life requires me to pull something 12 times in succession in such a way that my lats will refuse to do a 13th pull.

That's why I do strength at home. I manage to pull about 30 minutes a day (not much yet), and I interleave upper body/legs every day. Been pulling that for a few months and managed to get fitter, not loosing weight (weight has always been extremely difficult to get for me, so that's a plus).