You do something for so long, it becomes less than a novelty and a regular occurrence. Also forget how many other cyclists may not know about it. This happens with roadie traditions, even changing a flat tire, and how to travel with bikes. This short Vine about S and S couplings shows a favorite part of vacation – beginning and end – and my favorite tool. The coupling splits the bike in two halves, so you can pack it in a suitcase.