Quote Originally Posted by Pedal Wench View Post
Try to stuff it in your pocket or a seatpost bag. I see too many people with a loosely tied jacket just waiting to get caught in a rear wheel or brake.
Put a square knot in the sleeves and it should be fine. She's right, just an overhand "knot" is dangerous.

Quote Originally Posted by Pedal Wench View Post
Another idea is a tyvek FedEx pouch or grocery bag under your jersey until it warms up, then just tosss it out at a rest stop.
Tried that once, wound up dumping a quart of sweat out of the bag at each rest stop. Literally. Stayed warm-ish, though.