I have a wallet case for my iPhone, so ID & CC in there, phone in my pocket, AP in the lanyard pouch around my neck, and I'm set most of the time. DH wears cargo shorts to put anything else in, but he's usually just phone, keys, and wallet.
Sometimes I bring sock knitting in a small bag, but that fits in DH's cargo shorts until after security.
If I bring the DSLR, I bring it in a camera bag, though. I don't feel comfortable wearing it unprotected on rides.