Feel free to add your tweaks here:-)

Power Consumption

Use powertop (sudo apt-get install powertop) to find out ways to reduce powerconsumption

• Wifi powersaving is important (2W), enable with "sudo iwconfig wlan0 power on"

One way of reducing powersaving is to add entries to /etc/rc.local so they get loaded at boot.

Sample /etc/rc.local for Timeline Laptops

#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

/sbin/iwconfig wlan0 power on

exit 0

Using powertop to measure power consumption (only available when running on battery), for the 3810t, 8-9W should be achievable with wifi on and LCD at medium brightness. That yields more than 7 hours of battery life.

"iwconfig wlan0 power on" doesn't seem to work anymore in 9.10 alpha 3!

cyberfish@cyberfish-laptop:~$ sudo iwconfig wlan0 power on
Error for wireless request "Set Power Management" (8B2C) :
    SET failed on device wlan0 ; Operation not supported.

Upgrade Bios

Use this guide for upgrading the bios, no need for windows http://www.netbooktech.com/tag/acer-aspire-one-bios-update-instructions/