How to keep Windows 11 the cleanest?

I'm looking for advice on how to keep my Windows 11 system as clean and optimized as possible. I want to prevent unnecessary files, clutter, and slowdowns over time, while maintaining a secure and smooth operating environment. Are there best practices or specific tools I should use to regularly clean and optimize Windows 11 without risking important data or system stability? Any tips for keeping my Windows 11 installation lean, fast, and clutter-free would be greatly appreciated.