Analysis of information sources in references of the Wikipedia article "Church service" in English language version.
Hippolytus an early Church Father wrote, "Let all the women have their heads covered." Others who taught this practice in the Church were, John Calvin [father of the Reformed tradition], Martin Luther [father of the Lutheran tradition], Early Church Fathers, John Wesley [father of the Methodist tradition], Matthew Henry [Presbyterian theologian] to name just a few. We must remind ourselves that until the twentieth century, virtually all Christian women wore head coverings.
One of the most questioned practices in the New Testament in the modern day Western Church is the practice of Head Coverings for women. Yet to get perspective we need to look over the panoply of God's Church for 2000 years and see that this is not something new but old—and has been practiced diligently over the ages. It is hard to imagine but since the 1960s the Church almost entirely practiced this tradition. The influence of secular reasoning, feminism and liberal theology have led to the questioning and, ultimately, the casting aside of this practice in the Church at large in the evangelical world.
In the Orthodox tradition, this is a big no-no. Of course, no one would kick a bareheaded woman out of an Orthodox church, should she walk in, but she is very likely to face some disapproving and judging looks, especially from the local babushkas (you'll always find a few babushkas inside an Orthodox church in Russia). The reason is simple: in an Orthodox church, a woman should wear a headscarf.
Historically, at least in our country, tithing is the practice of giving 10% of one's income to one's church. Offerings are gifts given above and beyond the tithe, either to the church or to other Christian ministries.
At Five Lakes Church in Sylvania, where a non-denominational and multi-generational congregation sports everything from that suit and tie to summertime shorts and flip-flops, Pastor Micah Sutton offered a similar take. He hopes the casual-to-formal range signals to visitors that they're welcome in the congregation, and that they belong there, regardless of how they style themselves.