Cold crashing precipitates the cold haze proteins, so you only have to do it once. Whether you do it in your primary fermenter, or a bright tank (trying to move away from the term 'secondary fermenter') is totally up to you, but in either container, do it about 1 week before you are ready to bottle.
Primary:on summer hiatus
Bottle conditioning:Apricot Moon,
Drinking: Orange Moon, Ryecentennial PA,Caribou Slobber,Jim's Altbier,Mocha Cherry Stout,Pope Gil's Red Shoes(Irish Red),La Fin de L'Annee, Soxtoberfest, Pere Noel,Opening Day Vienna Lager, Ben's Doublealt, Gunslinger Cranberry Graf, several others