Ideas for Creating a Better Room Setup for Audio Gear

I have been upgrading my audio setup recently and started thinking more about the room itself rather than just the equipment. A good speaker system seems to perform much better when the space is planned properly, including furniture placement, lighting, and acoustics. Has anyone here worked on creating a dedicated listening room or entertainment area? I was also looking into advice from a Luxury Remodeling Company for improving the overall space without making it feel too commercial. Would love to hear what changes made the biggest difference for your setups.