I know folks at my camera club some of who are using M4/3 have a larger camera bag than myself and some just bring a point and shoot or just their phone and just use their real cameras at specific trips. Edit - some even leave a decent size bag of camera equipment in their car trunk. I wondered that you may have a lot of heavy and large equipment for that specific trip in mind such as kid's soccer game, the wildlife park visit, hiking, landscapes at Zion or bird photography but what do you bring and use casually. This may be a weekend brunch with family and friends and then some time at the waterfront or park or just walking around town. I usually just have with me a dSLR + 18-35 and a 50, and at most perhaps the plastic 80-200/4.5-5.6. TA.