I know this is dissenting, but I'd put the fullstop outside the quotation marks, as a rule. The exception is where the punctuation is a part of the quote. If I've ended a sentence with a quote, I'd put the fullstop outside. I'm not saying this is correct, but I prefer it wholly.
Similarly, if I put something in parentheses at the end of the sentence, the fullstop goes outside the parentheses, not inside. Only if I put the whole sentence in parentheses, do I put the fullstop inside. I've no idea how correct this is, but it seems more logical to me, and I prefer how it looks.