We introduce two new 3D positioning methods. The techniques enable rapid, yet easy-to-use positioning of objects in 3D scenes. With SHIFT-Sliding, the user can override the default assumption of contact and non-collision for sliding, and lift objects into the air or make them collide with other objects. DEPTH-POP maps mouse wheel actions to all object positions along the mouse ray, where the object meets the default assumptions for sliding. We will demonstrate the two methods in a desktop environment with the mouse and keyboard as interaction devices. Both methods use frame buffer techniques for efficiency.