Ook wrote:
I'm wiring up some outlets in my garage. I have a receptacle, wire going in
the box, wire coming out and going to the next box. The receptacle is a
standard receptacls, and has two screws for the neutral wire, two screws for
the hot wire, but only one screw for the ground wire. I hook the hot and
neutral wires to the respective screws, works fine.What is the correct way
to wire up the ground wire? Can I put both of them on the same screw? It
seems to be secure, but it is it the correct way to do this?

Take a look at the diagram at:

http://img.timeinc.net/toh/images/el...outlets01t.jpg

In other words, connect the ground wire with a pig tail to the screw on
top of the outlet. I wouldn't use the same screw. Home Depot, actually
has some pre-made pig tails, but using those only make sense if you are
going to do a lot of them.