Wanted to start a threat to note any tweaks that lead to enhanced battery life...

A couple I have always done:
-Start\Settings\Connections\Beam - uncheck "Received all incoming beams."
-Start\Settings\Personal\Input\Word Completion\ - uncheck "Suggest words when entering text"
-Start\Settings\Personal\Sounds & Notifications\Enable souds for - uncheck "Screen taps" & "Hardware buttons"

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My Road to Convergence: Casio E105, IPAQ 3630, Samsung i600, Samsung i730, Motorola Q & Q9c, Samsung i770