Maya: Optimize Scene Size
"Optimize Scene Size" is an often overlooked command. It makes a scene lean and gets rid of the "garbage" of previous work we did in the scene and don't need any more.
In this brief tutorial I demonstrate how we put some effort in building and lighting and shading a scene – and then notice that we don't need several objects and delete them. Their shaders are still there. We could delete them by hand, but Optimize Scene Size does the job automaticalle. And it would work with lots of other things we left in our scene without needing them: constraints, joints etc.
I use this command often in cases where I previously would have started a new scene. But why start from scratch when there's a one click way to start fresh with the things you want to keep?!