The Project Browser could be better organized than it currently is. For large projects, the list of items in there is very long even with Views and Sheets divided into several groups/categories. I think the Project Browser should include Tabs: Views, Sheets, Families, etc. so that when I click on Sheet Tab I only see Sheets without having to scroll through a long list of other stuff, for example.
Some other products such as AutoCAD (Sheet Set Manager), AutoCAD Architecture (Project Navigator), etc. already have this for years.