#8 all knives are sharp... had a coworker stab himself because it was so sharp, doesn't make em safer.
#16 maybe for some. but a pro dental guard will just be chewed up anyway.
#18 high end electronics? please tell me how that extra gig of speed, graphic, or whatever is improving your tiktoks to improve your life. lmao

Sharp knife=less force needed, less prone to slip and cut your fingertip off, safer to handle

Direct flights are just milk runs, non-stop is what you are thinking of.

Pillow, a good pillow matters to your neck and shoulders as much as a good mattress. It can be a cheap one, but replaced often, or a expensive comfortable one (goosedown, buckwheat, cotton, foam) , but what a person needs is as varied as mattresses.