To-do lists for issues
Some months ago I created a to-do list plugin where you can create several to-do lists per project and assign issues to them, also being able to order them via drag & drop. The others (partly outdated) to-do plugins didn't meet the workflow. I got the impression that some people wished a to-do list plugin like mine as I did read some comments about the other plugins in past.
Now I've updated the plugin to support Redmine 3(.1) and added two important (and wished) usability features: Assign via issue context menu and remove closed issues from the list.
Maybe the plugin meets also your workflow?