Dashboard PreValue Editor for Umbraco
The screencast below demonstrates Dashboard Prevalue editor - a simple Umbraco package that I recently released on our.umbraco.org.
The idea behind this package is that you'd use it to allow content editors to control PreValue lists. You don't want to expose them to the developer section so you can just place the datatypes you'd like them to be able to edit on the Umbraco dashboard in whichever section you'd like.
The UI is also a little simpler than the regular prevalue editor you just "type and tab". Each time you hit tab a new PreValue is created.
I also use this package as a developer during initial content loading.