Last night, the missus wondered why we received a postcard from the city's Sanitation Services Department inviting us to a "community meeting" with our city council member this Saturday to discuss garbage collection. "Um," I told her, "probably because they want to tell us that starting in February, the city's only going to pick up Northwest Dallas's trash and recycling once a week." To which she replied, "What the ...?"But, yeah, noticed this yesterday on the Dallas City Hall Web site -- the la