What’s your vote for the most ridiculous, overpriced, and useless tweak?

Reading reading this thread it becomes clear why sellers offer so many of these useless but outrageously expensive products.

Here are some examples of preposterous-sounding tweaks that are either free (hel-loo!) or don’t cost an arm and a leg. 💪 🦵

Silver Rainbow Foil, the Green Pen, Mpingo Disc (OK, so the price has gone up a lot in the last twenty years but the used price is not too bad), freezing things at home for two days, getting rid of all magazines, newspapers, extraneous trash, Black Pen on inner edge of CD, storing all CDs vertically, tying adjacent cables and cords into a square knot, removing all cell phones from the room.

power cords

the stands which lift your speaker cables off of the floor

But what if you use cardboard toilet paper cylinders like Elizabeth?