I'd add one more note about sleeping warm--close up your bag until just your nose peeks out of it. That's where most of the heat loss is--out the top opening of the bag.

And I only take one shirt and one pair of pants...at least for the first four days. yeah, they get dirty. So what.

And rain...I try to avoid be reading the weather forecast...and just wearing a light rainsuit over my regular clothers.