Iphone 4S 8.1.1 Battery Problem What else can I do to make my iPhone 4S work for as long as possible?

I have done all the "standard" battery saving techniques recommended on most sites, like:


turn off background app refresh, automatic updates
lower brightness all the way / disable auto brightness
keep bluetooth and cellular Off always. Rarely use WiFi.
No dynamic backgrounds.  


The battery is still dying way too quickly.
My Battery Usage indicates that the Home and Lock Screen are using 30% of the battery. How is that possible? What is it doing??
I have the same problem. Max life is 12 hours and very very little use.  It goes down by 5% per hour!!!

Apple said battery fine and I should only expect 10 to 12 hrs.  Back several iOS ago I could get well over 24 hours. 

Sounds like the want to force us to get new iPhones 6.