Whoever you want to, because if you always address a man first, that is discrimination. Although we agree all people are equal, it is respectful to address the senior person present first, man or woman. If you are writing a letter to a couple, conventionally the man is considered the head of the house. Many prioritize in favour of the one they require action from. It is, however, your choice. Just remember to do it with respect for the people and not blindly in the pursuit of a misguided sense of political correctness, for that would be discrimination.
man first and his initial ie:mr & mrs j.bloggs
Proper business etiquette dictates that the man should be first even with an informal envelope however many have used the woman's name first if she is more familiar to the sender. You address as the Man's name first. ei. Mr & Mrs Stephen Kariwiec
Whether man or woman whomever should apologize for something they did should be the one who apologizes and a man shouldn't have to take the brunt by apologizing first of a woman who is in the wrong simply to appease her.
i think the man should
If they have different surnames the man's name would be first. Otherwise it should say for example Mr and Mrs David Jones
I was always told that you never seperate a man's name. So, if you are addressing a card or envelope informally, and the couple is married, it should be addressed: Jane and John Doe
Either the woman or the man can speak first depending on the subject. Example: If you are both talking to a man who is asking a question about mechanics then let the man answer him. If it is a general question either the man or woman or both could give their opinion.
The saying 'ladies first' doesn't always apply. It all depends on what you are doing. The man or the woman.
The first man was Yuri Gagarin and the first woman was Valentina Tereshkova
In Philippine mythology, the first man and woman are Malakas and Maganda. They emerged from a bamboo stalk and went on to populate the earth.
God created man and woman on the same day, Woman was formed from the rib of Adam, so man was the first human on earth.
Whichever person is the guest should order first.