My great grand father died in 1984 at the age of about 85,[ I was 19 then ].

He used to keep a full container of drinking water = 1 liter, a torch , and lump sugar = 500 gm stock, a radio,
a diary used for calendar pupose, another diary/book for keeping money currency notes near by him 24/7.

Most of his requirements / items were matching to yours !!!