The first thing that would happen if it never stopped raining, is that as the grass on peoples lawns would get really really long, because no one could cut it, as their lawn mowers would keep exploding in the rain. Then of course (actually, this would probably happen first) everywhere would become totally flooded, and we would all take up residence in quaint little wooden boats. It would be very good for the water-transportation economy. I'm not sure what boat I would get; probably a nice wooden sail-boat. I'd have to think about names. I think it would be fun.