Learn typical keyboard shortcuts (Macs use ⌘):

ctrl-s: save
ctrl-e: export
ctrl-p: print
ctrl-r: reload
ctrl-n: new
ctrl-t: tab, new
ctrl-q: quit
ctrl-c: copy
ctrl-x: xut
ctrl-v: vaste
ctrl-z: zundo
ctrl-y: yedo (also ctrl-shift-z: Zundo)
ctrl-l: look at URL bar
esc: oh no!