Affordable diapers?

There are many brands out there which sell diapers anywhere between Rs 9 to Rs 16 per diaper depending on size! Cloth diapers are the way to go, but sometimes you just have to use the branded ones for journeys or overnight or any other special circumstances.. Hence, I wanna know what you guys use, any hacks, any place where diapers can be bought in bulk for cheaper? Any wholesale factory outlet, lol? Whatever works to reduce the overall longterm cost of literally throwing your money into the wastebin?