I'm an American living in the USA. Is it permissible to punctuate thusly, i.e., insert the commas and periods outside the quote marks?
• When Joe called me a "schlep", I was offended.
• The terms "prevaricate", "tergiversate", and "masticate" rhyme.
• Make sure to enter the log-in password "geeksquad 4".
• Nancy said, "I heard Lou say, 'Be careful what you wish for'." (Is the '." ending correct here?)
• Joe said, "Respect your elders". (Thinking it should be: Joe said, "Respect your elders.")
Thanks.