No seriously,

I don't know what you call them. Those small 'alligator' clips, with the plastic strip attached, that is used for attaching Identification or building access cards to clothing are good for that.
We use them for exactly that reason. The 'umbilical' cord from the bike radio to the helmet. I only use one. I have it clipped to the collar of my jacket and let the rest hang. Some of the guys use 2, one up the top like mine and another lower down, more-or-less at the bottom of their jackets.
Works well, you can leave your jacket on, unplug from the bike and take the helmet off, and walk away with the cord attached to you.
Take care,
Dave R
