My tip for today is actually not my own; it was offered by a reader, Liz C. It is so stinkin' brilliant (and hilarious) I had to share it with all of you. Add this to your repetoire next time the kids are being sassy:
If the kids can't use a civil tone, they get "grounded" to speaking in a British accent all day. If they're still struggling to be decent, they're grounded to singing everything. And one day, they were on it so bad, they weren't allowed to speak unless they could sing in RHYME.
(This wouldn't work for you British girls. Maybe you could make your kids speak in an American accent, if your ears could stand it all day.)