A few days ago, an ad offered a “complimentary brochure”. Literally taken, what you could expect of it was something telling very good things about you and accompanying best wishes.
They probably meant “complementary”, which, in turn, could apply only if the ad lacked something substantial (grammatical correctness apart). They should have used the word “supplementary”.

And, in Canada, we spell most words with an “our” instead of the American version of “or” such as colour and harbour.

My personal nemesis: Minute, even, stationary, stationery- (I really like the spell check feature.)

Reply: Those are all good choices; whenever I see separate spelled incorrectly, in my mind, I hear my elementary school teacher saying Separate has A RAT in the middle! I’ve actually done a post on espresso/expresso and some other misspelled words that you might want to add to your list.