I saw the presentation on qvc yesterday and they look useful, you use them to secure your purse to you shipping cart or a chair. I'm debatig if I will use them, I already have a purse hook that never remember to use.
http://www.qvc.com/qic/qvcapp.aspx/view.2/app.detail
http://www.qvc.com/qic/qvcapp.aspx/view.2/app.detail