Had electric inspected today and only thing inspector said was that my grounds were messy on a metal box (still code but messy). 3-gang box with three light switches running in different directions. How would you tie them in together to both look neat and have room for everything?
This is where copper crimp connectors come in handy.
Lets say you have a 3 gang box, with three cables entering, and three devices to connect. You also have to bond the grounding conductor to the box, if you're using a metal box. So you might have three grounding conductors entering, but need 4 grounding conductors, and they all have to be bonded.
Leave the grounding conductors from the three entering cables long, and get a scrap piece of bare wire to use as a pig tail. Feed the three grounding conductors through the crimp connector, so that there is enough wire left to connect to the devices. Insert one end of the scrap piece of wire into the connector, then crimp the connector.
Now tuck the crimped grounds back in the box, and attach the bonding wire to the box (using either a screw or ground clip). Attach one grounding conductor to each device, and you're done.
Alternatively, you can leave one conductor really long (while still including the extra bonding conductor), then use that single conductor to connect all the devices.
So, if the box holds a lightswitch that has a grounding screw, there's no need to separately ground the box, since the connection with the lightswitch provides the path to ground.
If this is a junction box with no devices, there should be a screw (separate from the ones holding the box up) in the box that you tie the ground to. The typical way to do this would be to run a separate bare (or green) wire from a screw (typically green) in the box, spliced together with all the rest of the ground wires in the box.
It's unclear from your comment, but it sounds like you're grounding to the screw holding up the box - this would be against code.