Also, numerical operations / form filling while consuming liquid or holding a pet. It's surprising the number of times the ability to perform even a subset of tasks while not having both hands to dedicate has allowed me to maintain focus and interest instead of stopping dead and having to spool back up slowly.
> Because that's where it should always be.
I must admit, I have yet to figure out how to maintain this discipline while whiteboarding, let alone walking, or sleeping.
Going from qwerty to number pad is a context switch. Once you've paid the price for the switch your middle finger rests above the 5, and you can quickly enter numeric information.
Numbers on the top of qwerty are good for incidental numbers when entering text, but around 5 consecutive digits is enough for me to move.
Are they useful enough to add to a laptop keyboard? Probably not.
- It's own tactile identifier
- Easy access to numeric operators
- Easy access to navigation- Diminished use of the pinky finger
- The only actual 'enter' key on the keyboard
I admit that it's subjective. 'Tenkeyless' is a standard mechanical keyboard trope for a reason.