Keeping cookies fresh

[bitchygrrl.livejournal.com]

I plan on baking cookies for my holday gift baskets this year. Some of these have to be mailed, and I was wondering how long will the cookies keep fresh? Also does anyone know if it is safe to shrink wrap them? I use shrink wrap for other things like soap but I have no clue if it should come into contact with food. Thanks :)

Edit: Thank you all for the help I will use bread and shrink wrap the tins