In QuickBooks® 2010 Intuit added a Payment Tool Bar on the right side of the screen when receiving payments.  There was no way to turn it off.  Now, in 2011 we have the option of turning it off.

This toolbar takes up a fair amount of space on many smaller monitors.  You can turn the Payment Toolbar off directly on the Receive Payment window or on the Sales Receipts, but you can also turn it off by going to the Edit menu -> Preferences -> click on the My Preferences tab -> UNcheck the Show Payment Toolbar on Receive Payment and Sales Receipt forms.