Passport – A passport with at least 6 months validity. Please remove your passport cover to facilitate immigration clearance.
IMM27E Disembarkation/Embarkation Card – In my case, I got it from the Singapore checkpoint and filling in the 3 cards took about 10 minutes. I was very sure that the car behind us was in fury because they had to wait longer. And please do not misplace the portion that they gave you, you need to give it back upon leaving Singapore. They will give spare cards when you leave Singapore so that the next time you come, you can have it already filled at home.
Autopass card – You can purchase the autopass card at the LTA office after the custom clearance. To get to the Land Transport Authority (LTA) office, you need to turn right after two police booths. To get the autopass, you need to show your car’s Road tax – you can either capture it by camera or your handphone camera and show it to the LTA Officer. Deposit is S$6 and you can buy for the value of S$10 or 20. Autopass Card is a stored-value smart card for paying Vehicle Entry Permit (VEP) fees, toll charges and ERP fees in Singapore. As vehicle information is encoded in the card, it is not transferable between vehicles. It can also act as a CashCard for all CashCard transactions.
Parking – You can use the Autopass card for parking and you can refill them at any Seven Eleven stores. Top-up is also available at most tourism attractions.
Toll fee – Toll fee is S$1.20 at the Causeway checkpoint (Singapore). Not sure about Tuas Checkpoint, though.
Touch N Go card – you need to have Touch N Go card in advance to pay for the RM2.90 toll upon entering Malaysia..
Things that are not allowed in Singapore – any kind of fireworks including pop-pop firework pellets and of course, drugs.