Editorial Spec Sheet

I have been doing jobs now on my own for about a year and as everyone at some time or another realizes the spec sheets given to me leave a lot to be desired and I have run into problems by the spec sheet being incomplete or me having to call and ask the same questions over and over. There are just too many ways of doing things now. The answer is that I am going to build my own spec sheet and send that out to whatever client I am working with and have them and their editor either check the appropriate boxes or whatever. I want to make sure up front that everyone is on the same page. Has anyone out there done this and if so would you mind sending me a copy so I might have some guidelines as to what other people are doing to alleviate problems? I would really appreciate the help.
Thanks