Feels a bit arbitrary I would hate for you to force a play or leave one on the table just for one day of odd plays.
After all, if you make an odd number of plays today and an odd number of plays tomorrow, you made an even number of plays over two days.
Maybe the arbitrary part isn't so much the odd or not even restraint, but the one day time frame.
Regardless, if you end up with an even number of plays one day, it's probably best to leave a play on the table instead of forcing one to get to the odd number.