managing windows in squeak

Hi. I'm new to smalltalk and squeak. I'd like to know how experienced 
users manage the windows when programming with squeak. I often have a lot 
of windows open and struggle to find the right one. Are there keyboard 
shortcuts for switching between windows? Is it possible to program without 
using the mouse at all? Does squeak have 'virtual desktops' or something 
like that?