Uggghhhh I feel your pain, it was middle of winter as well, coldest shower I've ever taken. We had Folgers in our MRE's, and was when I started using it as well as regular coffee just depends on how much time I have in the morning.
I got to wanting a Kuerig as I was lately teaching as well as only buying 4 cup makers, theres no doubt that at least to me coffee thats been in the pot too long gets "stale", even though my previous teaching job I'd come in some nights and the coffee had been in the pot all day, super black and bitter as the water had evaporated out, was gonna pour it out one night and one of the instructors said "wait, wait!! what are you doing?!?", because he liked it like that, super black and had been in the pot all day.