Did anyone include a cover letter with there application? I have heard of people including cover letters. If anyone has could you give me some examples of what you wrote in it?
The checklist will do the job in most cases. But if you have to tell some thing in addition, which you could not explain in the application forms, you can make a letter in brief showing only the facts for the information of visa processing office. It can be due to:
insufficient space in the application form,
if the supporting documents submitting are not exactly as required,
need to explain more about the relation with sponsor,
or anything similar to that which you feel that it would help the VO for their easy process.