1. Front door

Use a sturdy door-mat to scrape off dirt from shoes before it gets tracked in.
Place the mat vertically instead of horizontally so that everyone who enters will have to step on it several times.
Because entryways, mudrooms, and hallways are all small and confined, dirt quickly creates a less-than-appealing picture, and it can just as quickly migrate into other areas of the house.
Before you ever start cleaning small transition spaces, take steps to stop that dirt at the door.
2. Lead paint

Over time, ingesting or inhaling dust and flakes from lead-based paint can cause brain damage.
If you suspect that the paint in your home contains lead, have it tested.
If it contains lead, don’t remove it yourself but hire a specialist.
There’s a perfect paint for every type of surface. Here’s how to pick a paint finish.
3. Household cleansers, pesticides, paints and solvents

To avoid potentially harmful chemicals, select detergent-based, biodegradable products on which the words “danger,” “caution” or “flammable” do not appear.
Stick to these 10 laws when cleaning any room and you’re golden.