When I have multiple lines going in/out of a 1 gang box (with an outlet/receptacle or switch), I typically combine all the grounds into a single wire using crimp connectors:
However, when working with a 2/3/4 gang box with multiple outlets, should I be combining all the grounds into a single wire using crimp connectors? Because this would leave one of the outlets without any ground attached to it.
Or should I add in an extra loose ground wire into the crimp connector, so that the crimp connector now has 2 wires coming out of it? Then connect each one of those ground wires to the 2 outlets. That seems to make more sense but I'm not sure if it's the proper way to do it.
What is the proper, code-appropriate approach to dealing with multiple ground wires in a 2/3/4 gang box scenario?