I might be.The problem I have carrying them loose, is that I often lose pages or they somehow manage to work themselves to the bottom of my bag, crumpling them. I've stuck them in a folder, and this seems to work much better. They can't get crumpled and it's infinitely more organized.
i dont bother printing my sheetmusic until i need it. i just save all the pdf files into my computer.
just make sure you have it backed up! in case of a computer crash!
Me thinks he has at least two big 250gigs external harddrives.
2) 3 ring binder