@scoop was talking about me...my pulmonologist says to drink as much water in winter as if you were out walking or mowing lawn in summer. We don't feel hot, nor perspire, but the dry air more than compensates. I'm fine with 64 oz water/herbal tea a day - drop below and I get thick gunk in my lungs and throat. Also, IF I go out in the cold, I have to drink even more.

My lungs like our schedule - Northern US in summer, far South Texas in winter - we manage to do it on a budget - live in a 400sf mobile home we bought used, our lot rent is $300/month, fresh produce is abundant and cheap, and all of us in our community know where to find free or low cost entertainment. We shut off our water & lower our heat at home and GO!