A simple tool for Arthritic Hands

[Jon]

Also not an arthritis guy (yet!), but the photo of that driver makes me want to pick it up off of my computer screen and start confirming switchplate mounting screw torques all over my house.

There is a LONG and beneficial discussion to be had about the shape of driver handles. What are our main driver handle contributions in about 10,000 years of human civilization? The standard cylinder-like handle with occasional modifications, plus the T-shaped handle?