questions for EB1A-DIY, thank you for help!

I prepared application materials by myself. However it was very thick, about 6-7 cm high even I can slim them a little bit. How do you label and bind them together? Using some clour sticker? and what else?

Also if I do e-file (I-140 only), should I include a copy in the supporting materials? and should I provide copy of my passport, visa etc?

Many thanks to your suggestion!