Why the bottle neck of the displaced
What happens if I move the neck of the bottle below 45 degrees? Fill it with water, it will be difficult to the eyeballs, and drink will be easier and more convenient.
Of course, because now you can not throw back his head back to drink every drop.
Yes, and pour into a bottle of water from the fountains or machines becomes much simpler.
Here is a vivid example of how a small change can bring great benefits!