How can you move a light switch over a few inches ? ?

They actually make "after construction" electrical boxes that would work just fine and don't need to be against studs.

Thanks again William, your very resourceful! I'll check out all those sites. Actually I want to do both. The switch only needs to be moved a few inches, I think I can handle that with all those "how to's" but the new outlet may be out of my wheel-house. I was thinking I could tie into an existing outlet to create a another new outlet about 12ft away. The more I think about it--the holes in the wall and all the snaking and all the other projects I have going, this should be lower on my list. I still want to know how it's done for when it's time. It's great to know where to get such helpful, hands-on advice. Thanks to everyone for your time and know-how!