Citerar Tobiasz Karon <email@example.com>:Quick fix: save as a template in your projects/templates directory named "default.mpt". You can save other templates for other needs, too. This might be missing from the docs... but it does pretty much what you're asking for.
Blender has an option to save current project as default. Then what you
saved is loaded as a starting point everytime you open Blender. It also has
a reset to factory option.