After a brief Olympic disappearance Kitsilano’s unofficial outdoor thrift store is back in action on the Northwest corner of 4th Ave and Macdonald Street.  Here the frugal shopper can choose from an ever-changing array of goods displayed on a chain-link fence.  Items range from common wardrobe additions such as sweaters and jeans to the slightly more eccentric painted unitards and Hello Kitty sleep masks.  The merchandise is by no means limited to clothing either; tape recorders, plants and even tables and chairs are often splayed out in front of the crowded fence.  But the best thing about