Clean up build working directory similar to the expiry configuration

It would be nice to have the ability to clean up the build working directory similar to the Expiry configuration. The Expiry tool provides the ability to remove all build results data (including artifacts and build logs), deployment results and release artifacts, and specify the age (days, weeks or months) they must reach before they get removed. However this doesn't cover the build working directory.

There should be a way to clean up older working directories and not only the current ones. The "Clean working directory after each build" option inside the Job configuration area under the Miscellaneous tab doesn't help, in this case, because the build time increase is not something scalable in a Continuous Integration build.

For example, if we have a Plan running each hour, the "Clean working directory after each build" option means all the artifacts would need to be downloaded again. It would be good to have a feature that provides such flexibility just like the Global Expiry.