cheap insulation strategies

[MikeT]

Greetings,

Now that summer is in the rear view mirror, I am looking ahead to needing to insulate my ceiling and walls.  I would rather not buy new insulation if I can help it.

What are some strategies you can think of that will allow me to insulate to appropriate R levels for 2x6 walls and 2x12 rafters on the Oregon coast?

I am trying to find people who might be deconstructing homes, but in this economy these are increasingly rare.

I am searching Craigslist.

Other ideas?

Thanks,
mt

[MountainDon]

I've never thought of trying to use recycled insulation.   

It would be rather bulky to transport. Some of the rolled fiberglass I'm using seems to expand by a factor of about 6 when the packaging is split.