With few exceptions, it is still advisable to give your old company advance warning before you clear out your desk -- though that doesn't mean everyone is doing so.
"Manspreading" is an indelicate new term to describe how some male subway riders deprive other passengers of a seat. But seat-hogging is just one of many inconsiderate behaviors that have been the bane of commuters at least as far back as the 1940s in transit systems across the globe.