Over there: He said, "Put the period outside the quotation marks".
Over here: He said, "Put the period inside the quotation marks." "Pretending that you already know the answer when you don't is not actually very helpful." ~Migeru.
One thing where I constantly change between US and British and can't memorise which is which is the s/z thing -- memorize/memorise etc. *Lunatic*, n. One whose delusions are out of fashion.