It would be nice if a checkbox could be added to the /badges page, changing it from this:
To something like this:
It would make it a lot easier to see what badges I'm working towards!
The new badges page supports this feature. there is a earned/unearned tab for this purpose.
In the absence of this being rolled out on the site, I've written a nice little user script to do this.
You can get it from Stack Apps: Hide badges I've already attained
Not sure if wee need this. But if, it is maybe better to add another filter to keep the interface clean: