You have secured the router and ensured that all computers and other devices in your home have a stable connection to your small network, wireless or Ethernet. You no longer have any problems with the internet. Why not take advantage of the fact that all your gadgets can communicate to do more than just get online?
One of the seemingly simplest things you can do to get more out of your network is to start sharing files and other stuff between different devices. It was always easy in the past and you don’t have to carry around a USB stick or an external hard drive.
Unfortunately, Microsoft has made it a bit more complicated in Windows 10 and 11, including the transition to Microsoft accounts and logging in with Windows Hello. File sharing using the SMB protocol requires accounts with usernames and passwords, which most people no longer have.
But …