my language's keyboard layout moves 0 to a different location for some goddamn fucking reason.
I write code in US layout and communications in the local layout. When entering any kind of number I just automatically use the number pad because I don't always remember instanly what layout I'm currently, so using the number pad doesn't require me to pause and think for 2-3 seconds.
I switch between keyboard layouts quite often, so those seconds (and moreso the mental effort) adds up over time.