Wallcat

It might not seem like a lot of work to browse the web for a new wallpaper, but you will probably get tired of it pretty quickly, and no one wants to sift through numerous photos every day until they find one that is wallpaper-worthy.
Wallcat is a very small Windows application, an unofficial version of the Wallcat OS X app, which is also available as an extension for Chrome. It provides you with a new wallpaper daily, from several online sources, and it runs quietly in the system tray.

Several channels for you to enjoy, each with its own theme

Once you have launched Wallcat, you need to select the channel that best suits your tastes. A new image will be made available for each one every day, and the application will remember your choice when it is launched again.
However, we can’t help but feel that the app would benefit from some additional channels, so as to cater to the tastes of as many users as possible.

Lacks a couple of important features

Details about each photo or gradient pattern are listed in the system tray menu, and you can also check out more works by the same author in your browser.
Unfortunately, though, the images cannot be saved locally, and the application does not allow you to share even low-resolution versions of the photos with others.

Start it up and let it do its thing, but remember to add it to the startup list

Wallcat’s resource impact is negligible, and it requires no additional user input after it is launched. It will run quietly in the background and change your wallpaper daily, but it needs to be added to the startup list manually.
All in all, this tiny software utility is a good choice for users who want to spice up their desktop with fresh, hand-picked wallpapers. It could use a few improvements, but it is a simple no-frills application that will not get in your way.