Google's Picasa is the best free piece of photo managing and editing software you can find. What does it do? The better question to ask is what it doesn't. At its most basic, it's a photo manager and viewer. Fire up Picasa, and you can browse through all of your photos, organized by folder, as well as by the year they were stored on your hard disk.
How many photos would you say you have? More than a hundred? Six hundred? A thousand? Pictures are a big part of all of our lives, but there is else something which is equally important and that is where those precious pictures are stored. You likely keep the majority of them on your computer (although more and more, we are relying on smartphones). But what happens when you add them to your computer? Do you organize them?