Updates :: Share Windows Update Download Files Between Two Machines?

If you have, say, two laptops both running Windows 8.1, and it gets to the monthly Microsoft update Tuesday it seems crazy to have both machines independently downloading the same set of updates totalling around 300MB as was the case yesterday. Is it possible for one machine to run the updates, and then share the download files with another machine - whether via the local network (LAN) or via a usbkey or other media?

Certainly on my linux machines I have one machine run udpates and I then share the update package cache with all other machines saving considerable bandwidth on my home broadband connection. It would make a lot of sense to be able to do the same for Windows machines running the same version of Windows. The saving would increase even more if there was more than two machines in the same household such as if all members of the same family had their own machine.