How many copies should I use?

Dear All,

I plan to apply I-485, AP and EAD together in this coming July, and I
am preparing the documents.

Should I include multi-copies of some documents?
For example, I-485 needs a copy of passport ID photo page,
and valid status document(J-1, H1B et al.), and I-131(AP) also needs a copy of passport ID photo page, and valid status document. Should I include two or three copies of those documents (maybe I-765 (EAD) also needs them)?

You response is highly appreciated.