How to get a list of my designs and prints that have been submitted to contests?

Since designs and prints are only supposed to be submitted once to a contest, how does one determine which designs and prints have already been submitted?

How big is this a problem for you? I can’t imagine if you’re having a hard time managing your contest entries that you’re submitting much quality content. I could be wrong, but wow.

I’ve done 4 designs and 21 prints. Since my question had nothing to do with quality vs quantity, I see no need to reply to that statement. Have a nice day.