The common and accepted practice among married Ashk'nazim, at least, is that they don a talis katan in the morning without saying a b'racha for the mitzva, and, later, when donning the talis gadol for ...
There is a din in the gemorah (Chullin 110a/110b and likely elsewhere) ואמר רב יהודה טלית שאולה כל שלשים יום פטורה מן הציצית A borrowed tallis does not require tzitzis for 30 days (my ...
Some shuls require the shaliach tzibbur to wear a tallis for mincha which is normally given to him from shul property. Is he required to check the tzitzis before wearing it? Do we say that it would be ...