Do you happen to have a lot of favorites? I know I do. I mostly use favorites like 'bookmarks' to artworks / pictures I like.
However, I've never been a fan of 'cloud computing' where everything is stored online and you need to be connected to access it. It's totally inconvenient when you need something and you don't have access to an internet connection.
So I made this. It took me some time to locate all the mostly undocumented feature of DA I needed to do a favorite downloader.
What does it do? You first specify an userID (in my case, mine), give it a save location pattern, like save everything in D:\Deviantart, storing each art in a folder named by the artist name and deviation title. Then you hit download and it will retrieve the user's favorites list, and download the full resolution image associated to the deviation.
Now, I have an offline copy of my deviation, that I can use for my wallpaper or any other offline use.
I coded that in Java when I was at our maple grove shack, since the connection there is much slower than my main one at home.