Why would you have screws and stuff in your pocket?!
I've never had a protector since Lumia 800, not intending to get one for the 920. So far, so good - I have a dedicated pocket for my phone only.
Avoid doing too many deep discharges for the sake of calibration because this would wear the battery down.
How long are you guys getting on a full charge?
I thought it was a very bad idea to let Lithium batterys drain completely? And cycling (full charge/discharge) is only done to calibrate the 'fuel gauge', a couple of times a year - not within weeks of buying the device?
http://batteryuniversity.com/learn/article/battery_calibration
Does anyone here have the yellow handset? Seems only P4U have it at present?
Thanks