There is an icon on every re-listed lot on your unsold list. It looks like an arrow chasing its tail.
You can move those icons. Perhaps best for you would be to put that column next to the titles?
This doesn't work if you are actually using Sell Similar which I prefer in the possible incorrect belief that they get better placement in Search.
You can also set up your listings to automatically relist Unsold Fixed Price items by using Good Til Cancelled as the time period.
And of course, it can be helpful to get into the habit of adding a Note to each Unsold listing "relist 14/3/2014' for example. You can also add Notes to your new or repeat listings which are not seen by your customers.