Shredder scam
So I’m buying a paper shredder at Office Max. The sales-weasel tries to upsell me to a heavy duty shredder, then he starts telling me how important it is to lubricate the shredder regularly with a specially formulated shredder oil. Shredder oil? I never oiled my old shredder. Maybe if I had, it would have lasted longer than 10 years. My bad. Then he tells me that the oil is kinda messy, and what I really need is some convenient shredder lubricant sheets, only $9.99 for a pack of 14. Note that this is an order of magnitude more expensive per application than squirting a few drops of oil.
And what exactly is shredder oil, anyway? From the Material Safety Data Sheet (MSDS):
But not just any vegetable oil! This is oil from vegetables that have been genetically engineered to produce oil with exactly the right viscosity for maximum shredder performance.