Go out for a long trip at 4 o'clock, how to eat breakfast, prepare some milk at home, cook the eggs the night before, scald them with boiling water when you go out, drink milk, eat an egg and eat some bread, which won't affect your family's sleep, and you won't feel cold with food in your stomach. Take some fruit and take time to eat it yourself. It's healthy and nutritious, so why not? Economical and practical.