The current bookmark system is very flexible and feature rich, but is usually overkill for what I need. When I want to save my place in a PDF book, for example, instead of creating a new bookmark and editing it as I continue reading it would be much easier to just right-click on an existing bookmark and in the context (i.e. popup) menu have an option for "Save my place". Then, when I come back to the document it should just open to that location. Simple.