And being a woman who can't comfortably carry a purse is a real pain in the butt. I can't carry it on my left shoulder because I've injured that shoulder too often and it doesn't carry anything well. I can't wear it on my right shoulder straight down because it'll fall off because my right hand is resting on my service dog's harness, which lowers my shoulder slightly. I can't wear it cross-body because I've messed up my neck.

And I have no pockets of reasonable size to put anything into.

I've gotten used to sticking everything but my phone in my dog's harness. I'm dreading the day I have to get a new phone, because they've gotten far too big to fit in my pockets - my current phone's screen is a little over 3"! And I sure as hell don't want to put it in my dog's harness, because dogs do things like, oh, violently shake and knock into things.