I've noticed by default everyone else's computers with Safari on them do CMD+W to close tabs, but for some reason mine does OPT+T. Does anyone know why this might be, or how I might fix it? It's become a serious impediment to my browsing. Thanks!
My freaking hero. Fixed. It was an extra "Application shortcuts" option. I don't even know how that got put there. Maybe when I installed some add-on. Thanks!