Poppy Screensaver is a simple e-mail/website frontend which turns your favorite Internet browser into a lovely painting/scaler/etc. It is free software, absolutely free! If you want to upgrade to the pro version (it's available on request from Poppy Screensaver's author), you will be charged a one-time fee of about $40. For those who just want to change their screensavers, this is perfect - after all, most people just want a free screensaver.
The best part is that this software is so easy to use. Just install it, select your background, and you're done! And if you don't like how the interface looks, or you just want to tweak it a bit, you can also change the interface by going in to the "Control Panel" section and selecting "Panel settings". Or you can always "umaise" your current Poppy Screensaver, which will cause the software to replace the default screenavers with your customized selections. There are also a variety of screenavers you can download for free from the official site.
But that's not all! This program also provides a number of other useful features that you won't find in any other screenavers out there! It has integrated "helpful" Windows sidebar buttons such as the "back arrow", a "search tab" function, and a desktop widget to keep track of recent activities. And of course, it's always free! What more could you want?