If you’re like me, most of your pictures don’t have useful filenames. You probably find them by looking at thumbnails. By default, the thumbnails are really small, though.

To make bigger thumbnails, click Views on the Explorer toolbar, and then drag the slider up to the top (or as far up as you want–the higher you drag, the bigger they get). Windows Vista might spend a few seconds making your bigger thumbnails, but it only needs to do this one.