The Repo Pages module is a solution to avoid putting Basic Pages (i.e. an "About Us", "Contact Us", or "Privacy Policy" types of pages) in the database - but rather store them in the application code (repository) where they can be stored under version-control.
The Revisionator module clean up insightly old revisions! Revisionator removes
revisions older than the specified age, leaving a minimum number of revisions
per node.