Bug Out Bartering
Here are a few ideas for Barter items which might be helpful in a Bug Out sitaution.
> Cash
> Silver coins
> Sigarettes
http://www.pakalertpress.com/2012/04/27/the-barter-value-of-skills/
http://alt-market.com/articles/146-top-post-collapse-barter-items-and-trade-skills