I have two photography scenarios that maybe you can relate to. I like to travel and spend a day or two exploring a new destination but don’t want to carry much—maybe a couple of lenses, some filters, and spare batteries. What I do carry is heavy enough that a backpack makes sense, making photography easier. If I pop out for a few hours to wander around doing street photography, I have one little camera and lens, a filter, and a spare battery. I may have my reading glasses and phone too. I only need a small bag for that, where I can stow the camera if the weather gets bad. Otherwise, the camera is around my neck, so the bag is virtually empty.