A Two Button Trackpad
I do not understand why so many people like having a two button trackpad on their laptop. I am forever clicking the right button. Perhaps it is just the training of having a single button for so long that has convinced my thumb to rest there.
I could be wrong (I don’t have a laptop near me to check, but I believe I usually ‘click’ on a laptop with the index finger of my left hand and mouse with my right. (Rather than using thumbs.)