well i haven't done anything special at all I have been using my device for a few calls, loads of texts, checking and responding to a few emails, light web browsing and updates. save you reading the whole thread this is whats installed on my device.

Reflashed n900
Scud Battery (http://talk.maemo.org/showthread.php?t=65568)
CSSU 16.8
Power v48
3g/2g dual mode selection applet
an-Droid Icon Pack and other icon packs and themes, theme customizer.
AutoDisconnect
Battery Patch
BatteryGraph
BootScreen
Rootsh
load applet
Powertop
Qcpu Freq
Queen Beacon Widget
Simple Brightness Applet
sync time now widget
optimizeN900
Various fonts
tweego and sharing plug in
unrar and unzip for file manager
cuteTube QML
wifi switcher
O.M.Weather
yosmapa
pgz- space invaders
4 gig of music
brightness on 2, GSM, connects through Wifi Wlan transmission power 10mW (_vi). have email widget, weather widget, mediaplayer widget, and a QBW on.
haven't got much on it but everything i need so far.
with battery patch i changed the overclock profile from 805 to 600 as i found i don't need to O.C. as yet, previously i had it set to 750 but device acts great with the reflash and cssu.(eefo told me how well his was running that finally persueded me to reflash)
and that's all i have done with it, nothing special and some steady usage .

my battery alert has just started
ignore the big purple blocks glitch in the batterygraph image, that was when it was turned off