Smack your audience. Get their attention.
Some people absolutely detest writing. Some have problems spelling, some struggle with when to use a comma, some just don't have the patience for it. Most of us that work, though, find ourselves in situations where writing is just plain necessary to get the job done.
What's your biggest hurdle when writing for your job or business? Is it that comma? What about the apostrophe? Do you have trouble finding enough time in the day?