We used to have a bat file that, I believe, was called from the Autoexec as the last statement, open Word and Excel. We always kept a small file open and never closed Excel or Word once it was open.
We did this because there were only so many licences available, and if you didn't acquire one, you could have to do without Excel or Word all day.
Two of us did this for the secretary (who was quite helpful), and as word spread about it to the rest of the department, we also did it for them. Never admit it because we needed the advantage and there were over 1000 potential users on the site.