You may also want to mention the difference between “rein” and “reign” – I often see people mention someone being “reigned in”, and can only assume this happens when they have been reined in by their ruling monarch.
And let’s not forget the very popular baited breath.
My cats have baited breath – at least their breath smells like a bait box.
So many puns – just krill me now!
In my circle of friends, the interesting contrast is between errors we make in pronouncing words we’ve seen written a million times but never or rarely heard spoken aloud (Epi-toam for Epitome, for example), and errors we make in spelling words we’ve heard said aloud a million times but rarely seen written down (Kolidoscope was a memorable recent goof by a good friend).
And the English language desperately needs the new word “Emporer”, for a proprietor of an Emporium, just to give a purpose in life to the millions of orphaned typos for Emperor.