My problem is that I did learn to touch type -- back when keyboards didn't have a ctrl or alt keys. Of course, I'm referring to the IBM Selectric keyboards. So my fingers only know to hit the left/right shift keys when needed. Once keyboards grew the ctrl/alt keys, they only came on the left side. So my natural hand movement for something like Ctrl-C is left pinky on the Ctrl key, and an awkward stretch to put the middle finger on C. So annoying that my right pinky or thumb never learned about the right side ctrl/alt keys.