And I mean: a tip about power.
A photographer on a forum I attend corrupted some photos due to her turning off the camera power after every shoot segment before the image had saved fully to the card.
Bad idea. You risk losing images. You lose time. You wear out the switch. You use extra battery power by cleaning the sensor each time, when every now and then is enough. But more than that: when the camera is “off”, it uses the same minimal amount of power that it uses when it has gone to sleep. It is never really fully off. So while you are shooting, just leave it on. Just turn it off when you put it away.
And when you are not using cameras for an extended period of time, do recharge the battery every few months. Else, it will lose its charge – not a good thing.