I’ve read all the responses here and am horrified that you seem to live in an ungrounded plastic bubble. Is that a Canberra thing? Or can’t even find a small metal object the size of a coin to make discharging painless, how why?
If it’s an old house there should be tonnes of metal things to touch.
Corners of walls, radiators or central air vents or return air vents, screws on switches or power outlets, furniture with metal bits on it, sinks taps and water fixtures with metal parts, thermostat, fireplace casing.