Hi! I know this has been asked already but I can't seem to find the thread. Where is the best way to put the documents both original and duplicates? Do I put them in a paper folder like this?

http://www.psdgraphics.com/wp-conten...older-icon.jpg

One folder for the originals and another for the duplicates?

OR:

In a plastic folder like this one:

http://thumbs.dreamstime.com/thumbla...9634h3LG0w.jpg

Again, one each for both originals and duplicates.

Please advice! Thank you!