You will need this for emergency:
Swiss knife
Hammer and nails (lots of nails)
Saw
Ropes
Tie boxes
Duct tapes
Utility knife
Axe
Shovel
Bottle opener
Ziplocks
Wires and wire cutters
Hose (long hoses) and water sealants
Sewing kit and lots of thread
Spray bottle
Scissors
Staplers and staple wires
Gardening tools & fertilizer
Metal wires, barb wires and cutter
Sand papers
Souldering gun and soulder
Resistor and conductor (for mechanical needs, you’ll have a hard time finding these if the stores closes)
Electric wire and extension wires
Electrical tapes
Rubber bands
Magnifying glass for starting a fire if else fails