I think the object naming system in Blender is a bit awkward, so it could do with a very small change. When you duplicate an object or separate a part, the new objects are given names ending in .001, .002, 00x.... That seems to make sense, but you would like to have ALL objects ending in a number, and not to have "box" then "box.001" (which is a SECOND box, not the first, as the name suggests). Of course, you can give your ORIGINAL object the name "box.001". THE PROBLEM IS, WHEN YOU DO THAT, YOUR DUPLICATED OBJECT WILL BE NAMED "BOX" AND NOT "BOX.002", WHICH IS NOT VERY CONVENIENT. I believe this change is easy to implement, and it would make such a difference!