changing address after FP

Thanks in advance,
After making the FP, what other type of notice will USCIS send to me? As far as PF notice was concerned, only I received the FP notice, while my lawyer does not. Since I might change my address in the future, I worried about I will miss some important notice from INS.
When I did my FP, I asked the official in the INS how I should do. They gave me one form and told me that I can inform the INS of my new address by filling this form and mailing it to them. However, some guys said that this is not effective. Is there anybody having such experience?
If there is no problem for FP, should the last notice be the I-485 approval notice?
Thanks again.