I'm so glad I found this site - thought I'd share it. Just copy and paste your work in the block provided on this web site ...you will get a letter or word count instantly. Great for writing advertisements - or school essays - twittering - etc. anywhere that you have character restrictions. You will get automatic counts on your letter count or word count.
I'm sure there are other sites that you can use for this..but..this one is free - and no downloading anything.
Tools can be a great thing - for accuracy and time savers! Enjoy!