I added an exhaust fan, two additional outlets and sconce lighting. I did a lot of research regarding the wiring portion, but I hit some complications. I could not determine the chain where the GFI was installed and later found it was the one in the garage. This particular bathroom is upstairs on the other side of the house. I wisely called in one of my buddies who is an electrician to ensure that everything was done correctly and I was not going to burn my house down!