they have sent dean back in time 3 or 4 times now but what about Sam ( other then When he n Dean went back together) and if

There is a spn book about the civil war but they didnt go back in time. I think maybe they should send Sam back to the 70s that would be groovey lol, or to the future where he n I are happily married with 4 kids 2 girls 2 boys even better lol

i would like them to travel back to save castiel or maybe they could travel to a point in time when when there were loads of vampires, its a shame they are not british there would be loads of cool stuff for them to do