Maybe there are greater aggravations in your life, but the symmetrical-on-the-outside, asymmetrical-on-the-inside USB connector has been a source of frustration since its introduction. To combat the problem of USB plug rejection, Ma Xi Xuan has developed the Double USB connector that works right side up or upside down thanks to twin spring-loaded plastic connectors on its interior. The design seems more robust than previous solutions we've seen, but sadly the switch-hitting plug is only a design exercise at this point. We can only hope that company will exercise some common sense and make these plugs a reality. Tomorrow works for us.