That as of last month (July) I decided to try relisting an item one time per day. I was doing a different time each day. Usually not mornings but afternoons and evenings. I somehow got 8 sales! Maybe 9 if I miscounted....
So many people talk about the importance of relisting and I just thought it was no big deal. Especially since I sell jewelry, I thought there was no way I would be seen THAT much more if I just relist. But, it seemed to work and so I highly recommend giving it a shot for an entire month..
Go for it!