Bookmarking and thank you! Very useful!

I had one beta tell me that Americans tend to use 'won't' more than 'will' too:

I wrote something like:

"If you're done complaining, pass me the file, will you?"

and she suggested

"If you're done complaining, pass me the file, won't you?"

or

"If you're done complaining, pass me the file, okay?"

And another told me that Americans say 'continue' not 'carry on' as I was writing sentences like:

Blair took a deep breath and carried on bravely. "No, I do want to go on the stakeout."