Attention to those who wanted to travel to Singapore soon! Starting from Year 2020, no more arrival card is needed as the city-state decided to go paperless.
More info here
The move is definitely good for the cabin crew because they do not have to hand out the immigration forms to the passengers " landing cards for you sir/ma'am". Crew are freer these days as they also need not have to offer newspapers to each and every passengers. The newspapers are usually placed on the trolley outside the aircraft door and passengers can help themselves when they board. The same goes for earphones for the movies. Of course, for the first and business class, the crew will still have to offer the items to the passengers.