High cost of driving

I went to Suntec City to deliver a talk. I had to drive there, as I had to carry the materials needed for the talk. I left home at 7.45 a.m. hoping to avoid the ERP charges at Central Expressway. I did not realise that the ERP charges start from 7.30 a.m. I paid a total of $6 for the ERP charges along the expressway and to enter the Central Business District. Parking at Suntec city for slightly longer than 4 hours cost $11. This reminded me of the high cost of driving in Singapore.