itaysk

This is probably the oldest trick in the book.. but still – Not everyone had read the book :)

Here’s 3 Query String parameters that I think every SharePoint Developer\Implementer must know about.

DisplayMode=Design
Will take you to design mode when on a web part page (Where you can manipulate web parts and stuff).

ToolPaneView=2
This one will take you to design, and also show the good old web parts tool pane from WSS 2.0.

Contents=1
This one will take you to the web part page’s maintenance page, where you can remove corrupted web parts from the page, and restore it to a working state.

Just add the to the URL of the page.
I use them a lot in environments where menus are hidden or removed, or when the page content is corrupted.