I have been staying here for longer than half of a decade, yet I have never gotten hold of the paper standard train ticket. The Authority just changed the card though but I had never seen the previous one either.
Yesterday morning I was supposed to send a guest off from our house to the nearest coach stop to a nearby country, which is mere two MRT stations from our house. Originally our guest had planned to take a cab by herself and I would just help her with her belongings to the main road in front of our house, but being Saturday late morning, most of the cabs were hired and it was too late to call one as well. Afraid that she would miss her coach back home, we decided to take the train to the coach station.
I did not bring my wallet and EZ-Link card as the plan was to flag a cab for her and I could go back home straight away, so our guest purchased a standard return ticket for me instead. It was lucky that I decided to throw a pair of jeans and flats with decent sun block-moisturizer with a fresh pair tee, otherwise I would have been severely messy and looked like I had just woken up (even though that was true haha).
So about the standard ticket, you can top it up to a maximum of 6 single trips or 3 return trips or any combinations thereof. It is made of a thick art paper, much better than the one that I purchased for the Sydney trains during my trip :p