S: FreeEntity, FreeTexture and FreeBrush?

Hi all,

Is it a must at the end of a program to use freeEntity for all entities? FreeTexture for all textures? FreeBrush for all brushes?
Or else we may finally crash in windows?.
Besides, texture and brushes, all other entities are free with "FreeEntity"?
(eg.Brush,Camera,Cone,Cube,Cylinder,Light,Listener,Mesh,Mirror,Pivot,Plane,
Sphere, Sprite, Surface, Terrain, Surface)

Thanks in advance

You don't have to but it is a good habit to get into

just use ClearWorld and enjoy

Thank you for your tips, Nate the Great and Naughty Alien.
:D