nice and white, any tips (short coat)

You should find the same as dallys that although they will come back filthy from a walk they seem to keep themselves pretty clean.  I usually use one of those rubber brushes you put on your hands to get the dead hair out.  They do get bathed before a show but the one I dont show hardly ever needs one. 

For stains people seem to recommend using tomato ketchup dont know if it works as Abby is black.
Mary

Hi Emma with our white boxer her feet usually was the only part that got really dirty after long walks besides her under carraige all i did was just wipe her down with a towel that did the trick, As for her coat itself it remained pure white without having to perminently wash her.

Too much bathing might actually make it more likely to stain the coat its the dog's naturally oils that make it so easy, when the mud is dry, to just brush any remaining off. 

Emma,
It's just the tear stains that you'll really have to worry about.
Sure there's someone here that knows what stuff keeps those
awful tear stains at bay.

Otherwise same care and attention that you'd normally give your
Boxer regardless of colour.
:D
Have fun and enjoy Douglas!!

Kirstine
:D and the nutty Boxers :D