Think before you send today. A silly grammatical error could be a deal breaker for you. Watch out for the dreaded 'irregardless.' It's not a word, so don't use it. And while you're thinking about all those picky points, consider the difference between 'less' and 'fewer.' Use less for mass nouns as in: 'I have less money than you.' Fewer goes with count nouns -- 'You have fewer coins than I do.'