I just usually change my wallpaper over every now and then, it doesn't worry me too much anymore. I used to change it over a lot when I was younger but now I just leave the same wallpaper up for a couple months in a row or more. At the moment I have a Christmas scene I created on Photoshop as my wallpaper, it looks rather nice. Before that I had a photo of my two dogs but since it's close to Christmas, it was time I changed it! I don't worry about much else on it really.