Some 10 years ago, I picked up a simple USB keyboard from the scrap box of a hackerspace before to see whether it really was broken. It was missing one key, which made me think maybe that's all that's wrong with it. Turns out I can do without the Numlock key and all other keys work perfectly. When I have to press the Numlock key I use a pen. I never had to move another keycap onto it.
My idea when I took this keyboard was to same working tech from being dumped and destroyed and to have a random spare in case I needed a USB keyboard because I only had spare PS/2 and one very cheap and bad 2.4 GHz USB keyboard (if not 800 MHz). But there's something special about it. It's a BLANK keyboard, which seems to be a brand solely marketing keyboards without any markings or labeling on any key. I had heard of them before and thought it's an interesting idea. But I wouldn't have chosen to buy one. At some point I needed a USB keyboard and tried the blank one for a while. Since then I use this keyboard for my desktop PC intentionally, not because I don't have another one. I thought I'd write down my experience in getting used to it and what it did to my typing.
It appears a bit surprising to me now but at my first experience with the Blank keyboard was what I expected at the time. I was using it on a opened laptop with a broken keyboard. And I was very glad to have a labeled reference in front of me. typing a word or two took ten or twenty times as long because I didn't know what any of the keys were. Well, some are obvious (Return, Escape, Space, etc.). I must have cought a particularly patient time in my life. Because I kept trying to hit the right keys when typing. I also didn't really type texts on that machine at that time. So it wasn't too much of a dive into label-less typing. There must have been enough moments where I hit the right key first try to motivate me to keep trying and maybe learn to type blindly. When the laptop keyboard had dried sufficiently I was very glad about being able to switch back again. Such a relief. But I chose to go back to the blank one for a while every now and then. There were so many times where I started to type one or half a key to the left or to the right, so I started to produce gibberish, deleted the last few characters, adjusted my hand's alignment a few millimeters and try again. Sometimes (actually still pretty often) it took five or more attempts to hit the right keys. That was how I typed for a long time. When I wanted to type "Foo Bar Baz" I typed something like "Gpp<< I'll leave it at that one example. But it was a long