Coming from a DSLR, I'm new to having to worry about battery life, especially with the scarcity of OM-D batteries right now. What are the best ways to conserve battery on the OM-D? I know of the obvious ones, S-AF over C-AF, IBIS off, Eye-sensor off, Eye-fi off etc. but are there any other, less obvious, energy suckers you've encountered? - what takes more juice, the EVF or the OLED? I assume the OLED but I thought I heard OLED takes less energy than LCD so I don't know what to think. - what Picture Mode takes the least processing? I've noticed that putting it on Picture Mode 1, i-Enhance, prevents the High FPS EVF option, so it must be taking some processing resources. which ones would take the least? - what are the best power/sleep settings for street shooting (ie. at the ready, but not ON)? The Eye-Sensor is a complete liability as it's super sensitive and can't distinguish between an eye and my body when not in use. Would the extended Eye Cup make a difference? Appreciate any help from anybody familiar with Olys and m4/3rds in general.