Kitchen cupboards, inside and outside and inside of the doors. Top of kitchen cupboards, can get super dirty and make your house smelly and attract flies.
declutter and dust ever surface, put away costs and shoes in bedrooms.
interior doors, wash down with soapy water.
finger plates on light switches.
remove sofa cushions and hoover.
wash all soft furnishings, cushion covers, throws, blankets, rugs and mats.
use shaving foam on the floor and around the pedestal of the toilet.
lift your toilet seats, go at them with pink stuff paste and some magic erasers (but cheap ones off Amazon).
dust all walls and ceiling.
open every window for at least a few hours, clean the track where you open them.