reporter: the single-use packages are part and parcel of imam khanifi's own lifestyle.ouse in tangeran selatang, together with his older sister and his niece. laundry soap, shampoo, toothpaste -- all supplied in single portion plastic packs. even the spices for their food come in sachets. darsiah: if there is no sachet product, i don't know what to do. the sachet is very cheap, the amount is just enough for one meal. if i could buy a big pack, i would buy laundry soap, bath soap, dish soap, sugar, and coffee. but unfortunately, i only have a little money, and if i buy a big package, i'm afraid i can't buy other necessities. the important thing for me, the price of the sachet is cheap and i can cook every day. reporter: and pay the rent. as household help, she makes some 50 euros a month. her brother earns between 60 and 120 euros, though their income does vary. even together, it doesn't stretch to a middle class income. that's why they prefer to buy single sachets. it gives them flexibility. but over the long term, it's an expensive way of managing their household. a la