I like the Zenna Home 26 to 76-Inch Adjustable Tension Shower Rod, Matte Black - the design is practical and very flexible and portable.  With the rod able to shink to a smaller width compared to the usual shower rod size available - the use for this rod was extended to more applications.  For me, being able to use it in my walkin cabinet door way and from time to time, carry it with me in my car when I have to transport my stuff between home and my college apartment dorm.