All,
Finally I140 is approved yay!! and now I am in process of reviewing documents (with lawyer) for next step.
I have question about two documents:
1. Form I-131: Application for Travel Document (Advance Parole)
2. Form I-765: Application for Employment Authorization.

Questions:
1. Does these applications have fees?
2. Should I file I-131 and I-765 with I-485?
I won't be travelling before getting Green Card. Is I-131 required to travel on green card status?
My H1B is still valid for a year. So do I need to file I-765? I don't think I need to file I-765 after getting GC, isn't it? What are the advantages of filing I-765 now? I am not intending to leave my employer.
3. I-485: I think this is the only one that's required.