zg g = Good word, add to personal dict
zug Undo Good word.
zw obviously, Wrong word.
...
zo Open
zA open All
zc Close
zj uses the same movement as the j key
zk ditto
Once you have the mnemonics sorted, sometimes you find you can remember the others because they are the ones "left out" of those with mnemonics, like zd doesn't have a mnemonic, so the command left over is "forget fold", so zd is that one. After a while, muscle memory takes over.
