Okay, you have a webpart. You threw that on your page, except that either through some misconfiguration, or lets just say, some screwed up webpart now won't even let your frickin' page render.
Okay, so if I can't edit the page, how do I fix it? How can i get rid of that stupid offending webpart that I never shudda put there in the first place?
Here is how. Go to -
And bingo, you have a webpage that lets you delete out that offending webpart, both for shared and private views.
OUTTA THERE!! w00t!