I was so sad when I specifically ordered an HP laptop for work (The other choice was Dell) to get the keyboard with a trackpoint on it, only to find out that the HP layout only has two buttons.
It turns out my years of ThinkPad training has given me permanent muscle memory that the button underneath the middle of the space bar is middle mouse and therefore paste :)
It turns out my years of ThinkPad training has given me permanent muscle memory that the button underneath the middle of the space bar is middle mouse and therefore paste :)