Is it possible to change Adobe Illustrator settings to create an empty new document each time it is launched?
I would save your blank document as an Illustrator Template (.ait) file and open that from Explorer/Finder instead. The new document will be named "Untitled" until you save it, so you can't accidentally save over the template.
The template can contain swatches, empty layers, view settings, your company logo in the corner, etc.
See also Working Smarter, with Templates on the Adobe Illustrator blog.
On OS X you can use an AppleScript to launch the app then create a new doc based on your settings. I've used this approach extensively, though not to create new docs.
I haven't written AS in a while so I'll leave the complicated stuff to a more qualified person. But I can give you some example solutions.
You can also set up some options to present in a prompt when the script is launched.
Spending a little time setting up the script at the start can result in noticeable cumulative time savings.