Wow - what a difference my changes finally made. It's two and a half days since my last charge, and the phone is holding steady at 36%. What a difference...
As far as cases go, I have an Agent 18 Hipstamatic case:
The nice thing about this case is the tripod adapter -- if I'm on facetime or watching something on the iphone, I have a mini-tripod that I put the phone on and don't have to worry about propping the phone up. Very slick case, well designed, and it always gets people talking about it - it is, retro in a 70's cheezy sorta way...
-Z-man.