Candles, candles and more candles! Double-check the torches.
Ensure that my '24hr Pocket Survival/First Aid Kit' passes muster.
Get out my sewing kit and darn my gloves, walking socks and scarf!

Ensure that my work coat is repaired - unbelievable warm (walking across Exmoor, or working on Salisbury Plain is a joy, when I wear it - honest guv!) and it only cost me £5, many years ago, from a charity shop!
On the house: check the security bulbs, oil (with graphite) the locks, double-check the heating.
In the garden: dig up the veg. plot again and again, whilst applying organic chicken poo. Plant the garlic in October.