Vista is known for having an excellent and lively interface for users. Here’s a tip on how to get large display icons on desktop.
1) Click on your Desktop.
2) press Ctrl + Scroll Up. (This works in any folder too).
Alternatively, you can make them larger then when you select Large Icons from the menu
(Right Click -> View -> Large Icons).
There are more than 500 such simple tricks to make a vista users life simple.