IN: What happens next?

How to avoid having diarrhea during travel
Do not drink water that hasn't been sterilized.
Tap water and well water aren't treated in developing nations the same way they are in developed nations. This means that diarrhea-causing microbes are often present.

OUT: Stick to bottled water rather than water from a tap or well whenever possible. If you must drink water from a tap, then you should sterilize the water by boiling it for at least three minutes (five minutes if using it to mix baby formula).

IN: What happens next?

How to store milk
Buy the milk last.
Milk should be constantly stored at 39 f (4 c) and by carting it around the supermarket while you casually select your other groceries and browse the cereal aisle, it can really warm up.
Pick the milk with the furthest use by date.

OUT: Look towards the back of the fridge where they usually store the newest milk. Put the milk in a refrigerator as soon as you get home.

IN: What happens next?

How to clean white walls
Get the room ready to clean.
Remove all artwork, pictures, or other items from a wall. Clear the space near the walls.

OUT:
Push furniture away from the walls, for example. As you'll be dusting, you should also cover your floor in a tarp to catch dust and debris as it falls.