I have this implemented on my helpspot and it works great.
Basically works like this. If someone fills out the form and they do not put a cap on the first letter of their first name, I have it so it will automatically converts the first letter to a Cap. This way when any auto emails go out, and you have ##CUSTOMERFIRST## included in it, it will have a capital first letter in their name.
It will change it to read
Probably have it so it does it on the last name as well if you wish.
Just looks a little more professional.