DOES MY PLAY SOUND FAMILIAR TO YOU?

For whatever reason - lack of a proper filing system springs to mind - there are problems when it comes to submitting my plays to various theatres or competitions. This point was brought home recently upon reading the guidelines to a 10-minute competition that could be a fit for my short plays. This is a yearly competition and as I recall it was the lucky (IMHO) recipient of one of my literary offerings last year but the problem is...which one.

In the past I opened a file to keep track of which plays were sent to whom but along the way, I stopped making notes. Now I'm forced to play a guessing game in order to hide my ineffectual (read: non-existent) filing system. Should I own up to this fact in a covering letter? Something to the effect:

"Dear blah-blah,

Please find my short play, blah-blah, for your 10-minute competition. Perhaps it might look familiar and could have been one of last year's entries but then again, maybe not. If it doesn't strike a familiar chord, then consider it my official submission."

Be that as it may, I'm going to check through my "sent" file and see what turns up, if anything. If not - it's another guessing game. Did I mention that my play wasn't among those selected to be performed. Then again maybe I meant to send it but never got around to doing it. Go know!