When I installed and logged into Windows Vista, the first thing that I noticed were the big icons from my desktop. Immediately I searched for a way to make them smaller. So far, this is the easiest method I found:

Minimize all the windows you have open (if any), then press and hold the "Ctrl" key and scroll up or down with your mouse wheel. This will allow you to increase or decrease the size of the icons from your desktop.

In Windows Explorer you can do the same thing to change the size of the icons shown. Press and hold the "Ctrl" key and scroll up/down with your mouse wheel.

Alternatively, click on the small arrow near the "Views" button from the upper menu. A drop down menu will appear and you can select the size you want for the icons shown in Windows Explorer.

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