Have you ever wanted to have more options in the WordPress editor? WordPress.com hosted blogs already have an extra button, which opens more options, but standalone blogs – not yet. Not to worry! Press Alt+Shift+V while looking at the editor, and you’ll see more buttons unfold.
All sorts of goodies are hidden there – underlines text, more formatting options for headings, paragraphs, and preformatte text, text color, justified alignment, etc. For me personally, the most important button which I have hard times living without is “Paste as Plain Text”. It comes handy when using WordPress’ rich text editor and pasting content from ugly formatted web sites.
Update: If you want to have even more options and buttons, check this Advanced TinyMCE Editor plugin. Its author warns of compatibility problems with other plugins though.