I really think this thread should be restored to sticky status. I admit to not having perused it until recently, but I enjoyed spending a couple of hours reading many of the tips, and it truly is too good a resource to be buried deep under other threads.
Anyway, my contribution....
We get a lot of stuff delivered that is wrapped in cling wrap, or as you probably know it, saran wrap.
On our recent trip to Canada, I thought I would give it a whirl as a means to protect various items in the bike box. It's cheap, and helped keep metal from rubbing on metal.
I wrapped my Carradice in it to keep it compact, and the same with a Shimano shoe box with various small, easy-to-lose items inside. And i wrapped our pairs of pedals in it to keep them together.
It's cheap, readily available in just about any supermarket or corner shop, easy to wrap, and easy to unwrap. If you are very seriously enviro-conscious, it might not be for you, but I was happy with how it worked on our trip.