When your[1] answer to a dongle problem is "add more dongles", you really need to rethink the situation.
1. The generic "you", not specifically you, Phillip.
Sounds like another dongle to me! The last half of your sentence contradicts the first half.
http://www.ebay.com/itm/6FT-Genuine-Apple-iPod-Dual-USB-Fire...
Am I that weird?
So any time I'm going to be out long enough to have to theoretically carry full kit for my phone (in a hypothetical multiple-dongle world), I'm also going to have that bag with me, or some equivalent object for carrying things (i.e., extended outings not involving going to work), and not have to stuff everything in my pockets.
Apparently this is weird enough to be downvoted into negative-score territory.
I had never thought of it being a significant cultural difference.
Wouldn't the dongle just be permanently attached to your headphones ?
Or that my headphones are always used with just iPhones.
Basically, no more plug-and-play. This is exactly why 3.5mm was good: universal plug-and-play.