How do I change the order of the entries in my navigation?

While on the page in question

1. Navigate to the page in question and click the PageView icon () and select author.
   
   
2. Click the Properties and Actions icon ().
   
3. Select "Custom Metadata"
4. Set the sort order in the Sort Order textbox.
5. Click OK.

Through My Pages

1. Open the My Pages window.  Expand the folders to see your various pages, documents, etc.
   
2. Click on the pencil icon associated with the item you want to re-order.
3. Select Standard Metadata.  Click next in the popup window to access Custom Metadata.  
4. Set the sort order in the Sort Order box.
5. Click Ok/Finish.