I'm still here as well!
To keep my aged car going, especially to keep the battery and brakes in usable condition, I've been going for a decent run to a nearby town of around 10-15 miles each way to do grocery shopping, mainly once a fortnight in reasonable weather, temperature-wise, once a week early on when it was colder (consistently below 5degC, including overnight). That appears to keep everything that would deteriorate in good order, especially the battery.
My ventilation fan and A/C system sounds like it might soon need some TLC though - noisy fan (I only can tell when the car is idling and I've got the door open) and I think it may soon need a refrigerant top-up (not so bad as that has never been needed thus far in its 14 year life). Difficult to tell today about the cooling effect today as the outside temperature was a lot lower than previous trips.