The on-screen text read: "Then use the boiled water to wash up."
(But wait until it's cooled down a bit so it's not boiling, of course, to avoid getting burned when doing the washing up).
While this video has received over 13,000 views, there are other hacks that have been a viral hit.
One example that has over 920,000 views is recommending putting your carton of milk at the back of the fridge instead of the fridge door as the latter as the milk gets "pulled away from the cool air, affecting the freshness."
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