100 magic eraser sponges for $5

When Magic Erasers were introduced years ago, they cost a couple of dollars each, which was unfortunate because they don't last long. But they were worth it because they do a great job of removing scuffs and marks from walls, stovetops, tile grout, car bodies, vinyl upholstery, label residue from glass jars, and lots more. Today, you can buy knockoffs for as little as 5 cents apiece.

I use them to keep my Native Jeffersons in tiptop condition (shoe on left has not yet been cleaned to show the difference):

There's even a Magic Eraser ASMR video with 1.6 million views: