The page on Halachapedia here gives a clear rundown. I will try and link the sources accordingly (everyone feel free to add to any I can't find):
The Sephardic custom is to wear a Tallit Gadol from the age of chinuch in mitzvot (1). Chacham Ovadia adds that this is true even for a boy studying in an Ashkenazi yeshiva (2).
However, the minhag for most ...
One who puts on a tallit anytime during the day certainly fulfills a mitzvah and therefore makes the appropriate blessing. However, putting on a tallit at night may not fulfill a mitzvah, and therefore one does not bless. (Rema to Shulchan Aruch Orach Chaim 18:1)
There is some controversy as to the definition of 'night' in this context: does it start at the ...
I don't know where you live. In Brooklyn, Lakewood and other areas where there is a large Jewish population, the dry cleaners will take off the Atara, clean the Talis, reconnect the Atara and your Talis and Atara will look sparkling clean.
I do not think it is a good idea to put an Atara in the washing machine.
You can also contact Mefoar Judaica and they ...
S.A. O.Ch. 8 (4) says,
מחזיר שתי ציציות לפניו ושתים לאחוריו כדי שיהא מסובב במצות:
One should return two of the fringes in front, and two behind, in
order to be surrounded by the commandments.
M.B. (9) says that we make an “atoro” for the tallis so that the same two tzitzios are always at the front and the same two at the back.
So it seems that it is not ...
Just daven normally, if people can talk on the phone to their friends in public and wear all kinds of crazy clothes, we can talk to the Creator in public wearing tefillin etc.
Blessings and success