Ubuntu laptop - set start-up brightness level

Best fix for setting the desired brightness level when the computer first starts (for laptops & notebooks).

Adjust brightness to the desired level.

1) View maximum brightness level:
cat /sys/class/backlight/acpi_video0/max_brightness

2) View current brightness level:
cat /sys/class/backlight/acpi_video0/brightness

3) Set the brightness level to apply on the next restart. Edit /etc/rc.local and add the following line before exit 0:
echo VALUE > /sys/class/backlight/acpi_video0/brightness

Fix: Ubuntu 12.04 - Gnome Classic - Alt + Tab not working

1) Install Compiz Config Settings Manager: sudo apt-get install compizconfig-settings-manager

2) Run ccsm (Alt + F2 or terminal)

3) Go to "Window Management"

4) Check "Application Switcher"