we came home to having hot and cold running water! it's a festivus miracle!!!
on Christmas Eve our hot water stopped running, because a pipe froze. we tried some simple things but we couldn't find the pipe, and it wasn't about to unfreeze given the weather.
we tried what we could and we delayed for quite a while, but we had to leave for my parents' place.
we took precautions. We shut off the hot water at the intake (after leaving the valves open for many hours), and left a drip of cold water running so it wouldn't freeze too.
I was still nervous we'd come back to a burst pipe or an overflowing sink or something.
but it was fine! and the warmer weather today unfroze the pipe and everything's working again!