Removing road wheel

I have an '07 GT with the standard wheels.

If I need to remove a wheel, how do I do it?

The manual says that the center ornament needs to be removed before the wheel lugs nuts are loosened. Does the ornament really need to be removed? I've never done this on any previous car, but this is my first Mustang. If the ornament does need to be removed, what is the tool of choice for removing it without risking damage to the wheel?

Once I get past the ornament thing, I think I can manage dealing with the lug nuts, since I hand torqued them myself.

Thanks!

Thanks, bigcat. I have access to the lug nuts just fine. I use a standard 13/16" Snap-on deep socket--didn't even need to resort to a thin wall design. I didn't know whether the center ornament was covering up some attachment device that had to be removed.