I just use the simple green and water solution. And sometimes clean the primer pocket of its nasty looking. I actually size-deprime before cleaning, so that the water has another way to get out when drying.
Funny, I'm still new to reloading pistol (1 year). Have reloaded shotgun for years, we don't clean shot shells... so I haven't really worried about it. But dirt and grime can't help, so cleaning can't hurt. But I don't get all serious about it.