I use the folders of "Solid Bodies" and "Surface Bodies" often, by changing to "Select Bodies" I can find any solid and then expand out all the operations for that Solid, but I think the idea can be taken farther. I would like to have a 3rd folder that just has sketches in it. that way any sketches that aren't tied directly to a solid or Surface body can be scrolled through. it would give a nice place to re-name all your sketches at once. and find sketches that aren't shared and share them. there could also be a 4th folder for work Geometry to complete the set also. This would be most helpful for multi-body skeletons and such.