Use Ctrl-o in insert mode to dip into normal mode for just 1 command. Also, use Ctrl-r in insert mode to paste the contents of an arbitrary clipboard (Ctrl-r,

Use Ctrl-o in insert mode to dip into normal mode for just 1 command. Also, use Ctrl-r in insert mode to paste the contents of an arbitrary clipboard (Ctrl-r, a to paste register "a, Ctrl-r " to paste register "" and so on).