Have you excitedly installed a bunch of plugins, only to disable them later and now you're stuck with broken widgets?  They don't have to clutter your users' profiles and dashboards any more!  Use Kill Dead Widgets!™ to kill them dead!  Guaranteed!*

* This plugin is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.  Any guarantees are purely marketing lingo and will not be honored.  This plugin is not supported nor endorsed by any company, person, or entity, alive or dead, anywhere in the universe, at any point in time.  Make a backup first.  Be nice to your elders.  Don't speed.  Recycle.