In some embodiments a portable stand for supporting portable electronic devices when the portable stand is resting on a flat surface includes a panel-shaped top piece and a panel-shaped bottom piece. The top and the bottom pieces are configured to be interlocked to form an interlocking structure with an X shape when viewed via a view substantially orthogonal to the flat surface when resting on the flat surface in a first position. The interlocking structure is configured to be interchangeably positioned in the first position for presenting a support structure for supporting a laptop computer and at least one of a second position for presenting a tablet slot for supporting a tablet computer, or a third position for presenting an e-reader slot for supporting at least an e-reader.