My mouth tastes NASTY!
I notice that too, especially when I drink 'flavored' waters like Fruit2o or Dasani flavored waters. I chew gum, always have and never swallow it, (for crying out loud, I stopped doing that in elementary school!), and my choice of gum is I think its Wrigleys, maybe not, but, Polar Ice flavored. It's in the blue and silver package and it's sugar free. I used to chew this when I smoked because it REALLY cleans your mouth. It's like brushing your teeth without a tooth brush and toothpaste!! Honestly!
Also, if you can stand to live without your nosehairs, Altoids makes a sugar free breath mint. I LOVE Altoids!
Sandy