Hardware :: Setting New Default Printing Preferences

I've looked all over; the only thing support can tell me is "it depends on what brand you buy." Anyways, I have a color laser printer. Works great, but most of the time I'm just printing materials off the internet and some documents for work. Therefore I do not need it to be printing in full blown color. Especially not for sites where the author decided to use dark purple or blue text (or some other color from which I can't tell from a glance that it's not black). Right now the only way to do this to manually go into the printing preferences each time to choose B&W only. Likewise, I also have to go and check the Duplex box manually. All this is very tedious when you have do it every time. Can anyone provide some insight into making this easier? Maybe how to set the default preferences so they can be used each time?