Bernie Deitrick showed a cool way to insert rows into a spreadsheet in answer to a newsgroup post this week.
First, create a new column A.
Next, fill numbers down for each row. Then copy those numbers to the blank rows below.
Sort on Column A
Then you can delete Column A and your done. Obviously it would be quicker to just insert rows when you only have 10 rows. But if there were more rows, this method would be quicker. I would have probably written a macro to do it, but I like these clever user-interface methods. Particularly if you just need to do it one time.