Subscription creep is a real problem. It is one thing for $20 a month, and then another for $5, and before you know it, you're forking over hundreds monthly for services you might not even use. If you have a Raspberry Pi sitting around waiting for a project, you can turn it into a small self-hosting hub that can replace several subscription services as long as you take the right precautions.

I use FOSS (free and open-source) tools every day on my Linux machine. But before I started really getting into it, there was one app that changed the way I thought about software to that point: LibreOffice. Discovering it changed my mind about how I use software and I consider it a hidden gem that's hiding in plain sight.