Help the person recover their routine, not merely survive the hour you happened to see.

Help aimed at the hour you happened to witness fixes the moment and leaves the shape of the days untouched. Getting somebody through this afternoon is worth doing, but what usually costs them is the routine that keeps breaking, the errand that never gets done, the thing that will be waiting again tomorrow. Relief and repair are different jobs.

Ask what would make the coming week easier rather than what you can do right now. Then take on one repeating piece of it, not a one time rescue. Something dull and regular will help more than an afternoon of energy.