Compare Mnemonic Techniques for Memorising a Long List

A memory palace, a peg system, or a plain acronym, they all promise the same thing and take wildly different effort to set up. This compares all three against one specific list, so you pick the one that survives a week without review, not just the one that sounds clever.

Compare three mnemonic techniques for memorising [a list of 20 items in a fixed order]: the method of loci (memory palace), the peg system, and simple acronym chaining. For each, explain briefly how it works, how long it takes to set up, and how well it holds up after a week without review. Finish with a one-line recommendation for which to use for this specific list. Keep the answer under 250 words.