On my thinkpad (which has PageUp and PageDown around the Up arrow), I've remapped Fn to provide direct access to a spare Page Up key: this way, I can read content (mostly paging down with the space bar, and eventually going up) from either side of the keyboard!
It's handy when flinging an arm over the back of the chair or holding a mug.
It's handy when flinging an arm over the back of the chair or holding a mug.