I reckon these lube and sharp sheets are like a visit to the dental hygienist for a scale and a polish.
My hardworking new Aurora bought last month has been performing beautifully and intensely as I work my way through years of sensitive paperwork and do some much needed space clearing of old paper records of various sorts, tax returns past their 'you need to keep these for 7 years' and the like. New shredder (following years of a smaller, sulkier shredder which jammed repeatedly) has clearly had its work cut out.
There was an almost imperceptible hard-done-by whine developing so the recommended once a month lube and sharp had clearly been earned.
These are easy little sheets, which just need feeding into an emptied basket (clearly to make sure there is room for the debris to fall) and then a quick burst of reverse like the final polish, and the teeth of your little shredder will sparkle prettily for another month, and the dear little creature purr softly on usage once more