I carried wads of cash when I lived in Indonesia, because card acceptance is so unreliable it's easier to just pay by cash. Bills of 100,000 (~€6.50) are the largest, and while prices are lower than in Europe or Canada, they're not necessarily that much lower for a lot of things. It's a bit awkward, but doable I guess shrug.

I paid 6 million in cash for my scooter, and you can imagine what that looked like. Upshot is I felt very rich and like one of those fellas in those rap videos throwing around money.