A new duplication glitch has been discovered in Zelda: Tears of the Kingdom which can fill up your wallet very quickly, depending on how fast you can press the A button.
The glitch is relatively simple and requires a couple of weapons, some raw meat, and at least 57 Zonaite. It should be replicable in versions of the game up to 1.1.2, which is the version I tested it on and can confirm it works.
If you want a video guide to follow, the earliest video I can find of the glitch is from YouTube channel No Hypothesis. YouTuber Austin John Plays has a thorough guide too, in which he notes where things could go wrong.