My ex-g/f is a personal trainer. I'm thinking that she'd say:
.
Lean muscle mass burns fat, even while you're sleeping.
I see no reason to do one before/after the other - i.e., lift, then cardio.
Yeah, walking is great - especially up/down hills, etc.
Great for those bigass thigh muscles. Bigger = more fat burn.
When going uphill, turn around and walk backwards - great for the Vastus Medialis.
And rest, rest, and rest some more.
.
"Enlightenment (in this case, fitness) doesn't care how you get there."
- - Not sure who said that, so I'll claim it.