cashless society

I worried tak cukup cash to survive my business trip here .....I use credit card on almost everything - groceries, meals, shopping etc etc etc. I don't know how much is consider too low to use CC here. Back home, merchant usually put a sign - 'transaction above RM50 sahaja can use CC'. Here, sometimes, I also felt pai sek, if amount too too small, my definition here is USD10 and below - I would asked the casher - ok to use CC ? Then usually - their eyes besar sikit - and replied 'absolutely, sure , of course, definitely' ...hmmm, as compared to a simple 'yes'. Now, USD 5 also I bayar CC, my CC bank shld suka me lah - so many transactions ( business leh ). That day, I was queuing in Post Office ( PO selalu ramai orang lah - just like Pejabat Post - same - long long long queue - and slow lah) .... Suddenly, the PO officer came to me - invited me to go use automated machine and use CC or debit card ..... I told her I'll pass sebab mine hanya lapan puluh sen sahaja lah ....she said no problem at all - in view of the long queue - I tried the machine - so created my lowest CC charge - USD 0.80 = RM 3.20 niah .....joking tak ? I wonder if I ever get a letter from CC's bank - dear so and so , please do not charge anything less then RM 10 , hehehe. Cashless society can only happen kat sini , not back home ....