haha
I love threads like this, so a quick lesson from someone who has studied technical PR writing, oh and went to primary school:
their (indicates possession, e.g their house) / there (indicates position, e.g over there), do not mistake for "they're" (a conjunction for they are)
to / too (extra 'o' is for adding some on the end, e.g can I come too?, the freshwater tanks were dirty and the marine tanks were too)
recommend (not reccomend)
maybe (not mabey)
pressurised (not pressurized.. are we American?!)
while (not wile)
you're (it's a conjunction for you are, not your!! your indicates possession, e.g your hair is cool, you wouldn't..well you shouldn't say you are hair is cool)
happy learning