The list below is not exhaustive, and new ones are arriving continuously, but it should free your feed from a significant part of these questions.
Allow me to quote from another question I just answered.
This is an excerpt from a comment that was quite longish and almost an answer to a question in itself (only that the question is not, to my knowledge, posted—or if it is, I don’t know what it asks).
– – – Excerpt – – –
If you come again, let me know and I'll show you the library! Myself I haven't y...(more)