Ctrl+w for switching split windows. Ctrl+u,d for page up and down. Ctrl+e,y for shifting the screen up and down. Ctrl+],t for moving in and out of tags (with

Ctrl+w for switching split windows. Ctrl+u,d for page up and down. Ctrl+e,y for shifting the screen up and down. Ctrl+],t for moving in and out of tags (with ctags). Ctrl+v for visual block mode. Ctrl+[ instead of escape. Ctrl+p,n for autocomplete. Ctrl+r for redo. Ctrl+o,i navigate location jump history. ...and probably more that I don't know about. Additionally: I have Ctrl+h,l mapped for tab switching. Terminal multiplexers like tmux and screen use Ctrl for switching terminal sessions.