Regularly clean your shower walls, floor and shower head. Use bathroom cleaner or a vinegar-water mix (one part vinegar to one part water).
If you have a glass shower door use a squeegee to wipe it down every day. This prevents soap and scum building up.
Clean your toilet regularly with toilet cleaner.
Regularly clean your stove top by wiping up spills. If you have a ceramic stove top use a cleaner specifically for ceramic stove tops, otherwise use a general kitchen cleaner.
Regularly clean the inside of your oven. Use an oven cleaner or make your own by mixing half a cup of baking soda with a few tablespoons of water to make a paste. Spread the paste over the
inside surfaces with a cloth, leave it for 12 hours, then wipe off with a damp cloth.
Vaccuum carpets regularly - don't forget to vaccuum under beds and in wardrobes.
Dust surfaces regularly with a damp cloth.
Regularly clean floors with a mop or floor cleaner. Use disinfectant added to half a bucket of warm water.
Wipe off marks on the walls with a sponge and warm water.