For the past three months, however, he has swapped his car rides for hour-long bus journeys on most days to save money on petrol.
Noticing that his family's expenditure was exceeding their monthly budget, Mr Lee decided they had to take action to curb their spending.
"Sometime in February, we started to see the costs going up because of the (Russia-Ukraine) war. I started to hear news about how inflation is coming (up), interest rates are likely going to be going up," he said.
"As a result, I started looking at different options on where to save money."
For Mr Lee's family, their biggest costs came in the form of petrol, dining out and groceries.
In the past, he would fill up his car's 60-litre tank every two weeks, which set him back by S$125. But now he pays closer to S$160 for the same amount of petrol.
Fuel prices hit a high amid a supply crunch amid the Ukraine conflict and inflationary pressures. In Singapore, prices of the most popular 95-octane grade petrol have been fluctuating between S$3 and S$3.42 a litre, compared with about S$2.80 before Russia invaded Ukraine in late February.
By making the switch to public transport on weekdays and minimising the use of his car on weekends, Mr Lee, a business development executive, now saves about S$150 a month. He also saves the S$14 daily he would otherwise have to spend for parking at his office building.
"I only have to take two buses … and it actually stops at the bus stop just outside my workplace," said the sole breadwinner who has three young sons.
I, being poor, have only my dreams; I have spread my dreams under your feet; Tread softly because you tread on my dreams.