Brightness is low in public so as not to attract prying eyes. Reading a paper over someone's shoulder is bad enough, reading an e-book people tend to squint and get up close. Outdoors or at home I crank the brightness.

Sound is almost always off. If I'm at home I'll turn it on but only if I remember.

I also use theme 4 with the red in it. I wish there were more available. My wallpaper the silhouette of someone hanging from a tree with a giant red star in the background over a yellow stonework sky. (The original piece from www.deviantart.com was an anti-racism piece)

I'm still itching to get stick on vinyl letters from a hardware/hobby store. "DONT PANIC" is coming soon

I've also modified the menus and sorted apps into:
<separator>
Apps
Internet
Games
System
<separator>

Nice, small, simple. Any new apps still go into 'Extras' (the only branch of the menu tree you can modify without root access. I just move them after install manually.