I am really posting this for selfish reasons. When Facebook first launched the widget to allow you to post from Facebook to Twitter easily, they made sure you couldn't miss the widget. More recently, they've made it (nearly) impossible to find. And I finally found it! And want to make sure I know how to get there again. So here we go, for you and for me: Once you go to the widgets page, choose the Twitter Link widget.
I just read about a tool that lets you plan not only your Twitter posts (like HootSuite.com) but also your Facebook account. The good news with HootSuite is that it's free but so is SocialOomph.com for the Twitter piece. They do charge you for the Facebook scheduling and many other pretty cool looking features. There is a free 30-day trial for the professional version however. Here's a link to check it out (full disclosure, I did just sign up for an affiliate account): SocialOomph.com