Originally Posted by
freethinking 
My impression of "One Day at a Time" is that it implies taking things in the present moment, and NOT living for or worrying about tomorrow.
Yes, except that the Addictive Voice might subvert "one day at a time" into, "I'll worry about it tomorrow", meaning "I'll quit drinking tomorrow."
I am a "compartmentalizer" myself, so I always take one day at a time, but I prefer to think of it as "now", because I am also a procrastinator, and my own AV is pretty good at putting things off.