I figure 100 carbs a day for myself is about my limit.  If I hit the 100 I'm probably not going to lose any weight that day.  When I'm all in trying to lose pounds I will shoot for 60 or less.  With my 100 goal I may go way under it some days, maybe low as 20 which would be a good day, and days I hit the 100 mark I figure I just not losing any weight that day.  Sometimes cookies or a cake mysteriously shows up, that's the days I hit the 100.  Every once in a blue moon I may blow it completely, but jump back on the horse the next day.  Some days I will drink a glass of milk, but that's normally where most of my carbs for the day come from.  At least make sure your drinking whole milk so you get something out of it and may not have to drink as much to feel satisfied.