What are some examples in Historical Records that advocate frugality and oppose extravagance and waste?

For example, Han Wendi. The earliest name of straw sandals is "Yi". Because the main materials for making straw sandals are grass and hemp, which are very economical and inexhaustible, ordinary people can bring their own, which was called "not borrowing" in the Han Dynasty. By the time of Emperor Wendi, cloth shoes and straw sandals had become the clothes of the poor, while Emperor Wendi set an example of frugality by "walking without looking at the DPRK", that is to say, he wore straw sandals to work in the temple. Not only sandals, but also his robe is broken, so let the queen mend it for him before wearing it. Emperor Wen wears coarse clothes himself, and concubines in the harem are also plain clothes.

Most of the palaces where ancient emperors lived had to build large and beautiful balconies. Emperor Wendi also wants to build terraces. He found craftsmen and asked them to calculate how much it would cost. The craftsmen said, "This is not too much. One hundred Jin of gold is enough. " Emperor Wen of Han was taken aback, shook his head and waved his hand and said, "There is very little money in the court now, so I'd better save it." Emperor Wen of the Han Dynasty was emperor for twenty-three years, but he didn't build palaces, gardens, vehicles or even dogs and horses. He cared about the sufferings of the people, and soon after he became emperor, he ordered the elderly over 80 to be supported by the state, giving rice, meat and wine every month; For the elderly over 90 years old, some linen, satin and silk cotton will be distributed to make clothes for them.

Before he died, he finally arranged a frugal activity-his funeral. In his testamentary edict, he denounced the custom of heavy burial, demanded that the funeral be simple for himself, and treated his family's "Baling", clearly demanding: "All of them use earthenware as utensils, not gold, silver, copper and tin as ornaments, and the graves can't be cured. If you save, you will save, and if you don't work, you will benefit the people." Emperor Wen of the Han Dynasty created a prosperous era of "the rule of cultural scene" because of his spirit of honesty and love for the people and his practice of making great efforts to govern. Later, the Red Eyebrow Army invaded Chang 'an and dug many emperors' tombs, but Wendi's tomb did not move, because it was known that there was nothing valuable in it.