Life seems simple. Buy a camera and then go out and start taking photos. Soon you've bought another lens, filters, a flash, a tripod, another lens, etc. You've also got batteries, SD cards, cords, chargers, etc. Before long you've got a lot of "stuff" and you realize you need a camera bag. For me that meant getting a backpack. After careful research I decided to get the Case Logic SLR Camera and Laptop Backpack SLR-206. I'm not recommending this for anyone else but it's exactly what I needed. I wish it held more because I have to make choices when I fill it up for a shoot but if it was any bigger I probably wouldn't like it. It just seems about perfect for my needs. Please see the video below.
I am an amateur photographer and I have been actively taking photographs most of my life. My primary camera is the Nikon D7100 with an 18-135 mm lens attached, but I'm also known to use other lenses as well as the camera on my iPhone 5.