I've noticed some How to's floating around here, and rather then have them lost on the back pages I figured I would just link them all in here for everyone to use. If you know of any others or would like to make one, let me know and I'll link them in here. These were just some of the ones I could find.
2003 RX 300 Repair manual
1999 RX 300 Manual
Idle Air Control / Idle air control valve & throttlebody cleaning
$15 repair for Door actuator
Navigation Hacks and hidden menues and option