My wife used to burn through cables. Now, the first thing I do when I get a new Apple device is add strain relieve. I don’t remember where I learned it, but I use the springs out of empty “click pens” (think Bic). When a pen runs dry, I take the spring out and save it in a small container in the “packet drawer.” When I get a new cable, I wind a spring around each end. It has the added bonus of making the cables easily distinguishable as belonging to us.
I haven’t had any issues with that. I think the major issues (at least with my wife) came from the fact that she usually disconnects by pulling the cable, and not the body of the connection. She still does this, but the spring covers about 2 inches of the cable and I haven’t had any frayed cables since I started doing this.
