Why do most people use cold water to brush their teeth? In other things (our bodies, laundry, dishes, etc.) we use warm or hot water to get things cleaner. Why don't most people use warm or hot water when cleaning their teeth too? Is toothpaste formulated to work better with cold water?
I've usually worked in factories. Proper lifting for us is to spread your feet apart (for better balance), squat down, lift the object, then stand up while keeping your back straight. What's the common office procedure for a woman in a skirt to lift something (like a box of files) off the floor? Our way of lifting doesn't seem very lady-like. How do you do it? I have no idea of how I'd lift a box off the floor if I were wearing a dress or skirt.