just stumbled across this forum while having a nose about. It's just up my street! spelling and grammar were drilled into me by my DM from a very young age.
--she never cared about the content of my school work, as long as the spelling and grammar lived up to her standards.
going to have to keep my phone spell check on its best behaviour though 
some of my favourites.....
should of/should have
pacific/specific
definately/definitely
missing/unnecessary apostrophes
errors on shop POS - always asking for complaints IMO