There used to be a joke in the 3D printing community about buying a cheap printer just for the pair of flush cutters that comes in the box. They’re super cheap, I keep a pair designed for first aid (mostly hang nails and splinters) and a toolbox pair for removing store tags from clothing, removing zip/ twist ties, small gauge wire cutting/ soldering, 3d print clean up- generally any time I need to cut something and don’t want to risk cutting into something else.
My naive/ innocent assumption would be that if you happened to purchase mechanical keyboard supplies you might be interested in blank key caps since you don’t need the glyphs.
I think my favorite was “Systematically building electronics component inventory”, but pretty much the same, mostly just my brand preferences and the stuff I tend to buy.
I’m also really deliberate in how I shop Amazon though: sift through my options in a private window and once I narrow down to what I want, copy the link, remove the tracking garbage, open it in my regular window, add it to my cart, rinse and repeat. It’s probably a paper shield at best, but good to know it helps curb the “[spends an inordinate amount of time comparing items, two thirds of which are also available on Ali Express]” inference.
Oh! If anyone is interested in shoelace knots, I’d highly recommend checking out the Ian Knot. There’s a similar need to make sure the knot is balanced to keep it secure, but it’s overall much faster to tie.