When I got serious about learning Vim and was doing vimtutor I rigged up a piece of cardboard over the numeric keypad, the PgUp, etc keys and the arrow keys so

When I got serious about learning Vim and was doing vimtutor I rigged up a piece of cardboard over the numeric keypad, the PgUp, etc keys and the arrow keys so when I tried to use them I couldn't. It took my brain a while to stop reaching for them but eventually it worked. To this day I naturally shy away from them although I've overcome that somewhat when it comes to using the numeric keypad. It's kinda of similar to the Right Menu key in Windows. I hit Shift-F10 for so long I never got used to this new key and used it.