I extend that into my cell phone too, sad, I know. BUT, since I got a little SD card for my phone a couple of years ago from Santa, I've found some freebies that fit my cell phone screen perfectly! Here's the site I use with a lot, great stuff- Zedge.net, seasonal wallpapers . You can search for your model of phone.
I found these old-fashioned wallpapers today-
She reminds me of an autumn goddess!
Ah, a quiet country road...