This is not about technology but it is a fun useful item. No matter how much technology...I can not do without a pen.
It's not easy to sign a listing, give a number, take a quick note, make a 'to do" list, write a check, sign a receipt... and do it quickly, without having a pen!
In the car, I am jotting down notes and numbers and writing mileage on gas receipts.
So easy to have four colors all in one little pen.
This, not so new, tool has been around since the 1970's.
Use it for contracts...assigning a color for buyers and one for sellers. Changes in the offer? Initial with another color.
Techy..not by a long shot.