Are you tired of dealing with large OBJ file sizes in Blender? Here's how you can optimize and reduce the file size for better performance! First, simplify your geometry by removing unnecessary vertices and edges. In Blender, use the Decimate modifier to reduce the polygon count while preserving the overall shape. Next, consider using texture atlases to combine multiple textures into a single image, reducing the number of separate texture files. Additionally, you can lower the resolution of your textures without sacrificing too much visual quality. Another way to reduce file size is by removing hidden or unnecessary geometry from your model. Use Blender's built-in tools like the Limited Dissolve and Clean Up to simplify the mesh and remove unnecessary vertices. Finally, when exporting your OBJ file, make sure to adjust the settings for precision and scale to avoid unnecessary data. By following these tips, you can effectively reduce the file size of your OBJ models in Blender without compromising the visual quality of your 3D models. Try out these techniques and see the difference in performance and efficiency when working with large 3D models in Blender!