Many free programs to enhance your Windows desktop experience divided by “categories”, how to get the max and many other extra features both at visual level and practical level:
virtual desktops:
shock 4way 3d (for Windows 2000/XP/2003/Vista)
VirtuaWin (for all Windows versions until Vista)
Windows Pager (for Windows 2000/XP/Vista/7)
Dexpot (for Windows XP/Vista/7)
DeskHedron (for Windows 2000/XP)
Dexpot for Windows 2000/XP/2003/Vista/2008/7 (incl. x64)
desktop effects:
shock desktop 3d (for Windows 2000/XP/2003/Vista)
Nimi Visuals (for Windows XP/Vista/7)
T3Desk 2010 (for all Windows versions)
desktop split:
GrindMove (for Windows XP/Vista)
various utilities:
wally (multi os)
DisplayFusion (for Windows XP/Vista/7)
Fences (for Windows XP/Vista/7)
shock aero 3d (for Windows XP/2000/2003/Vista)
shock desktop (for Windows XP/2000/2003/Vista)
IconRestorer (for Windows XP/Vista/2003/7)