Sanitation and planning among immigrants and migrants .
3/Hand washing (toilet, blood, etc..)
7/Doing laundry : Clothes, underclothes, towels, sleeping clothes, blankets.
8/Hang-drying laundry .
9/ Ironing laundry .
4 weeks per month : a day, a week, a month .
Mr X and Mrs X have cheated while they have been studying for a month.