The lucky color of a 70-year-old dog man is yellow, because the five elements belong to the earth. Therefore, wearing more yellow clothes and using yellow daily necessities, furnishings, jade, crystals and yellow curtains can bring them happiness, good luck and a happy marriage. Yellow represents happiness and optimism, but sometimes they are prone to depression. If you can always see yellow things in your life, it is better to use yellow as the keynote of home curtains, which will have a good effect on their development and mood.