I installed the $34.00 extra cupholder suggested by taurusjds:
My OEM cup holder works fine, but I too was tired of knocking a Big Gulp onto my passengers with my elbow or a .93g turn!

This extra cup holder also works for your passenger. It fits our interior really well and took like two seconds to install (or remove).

It does not interfere with leg room, just make sure to remove it before pushing the passenger seat up.