Teams that are scheduled to play team #18 will NOT have a bye that week.  You will play against yourself.  Field a team of 4 players and play as you would.  Your score will be determined by the score of the hole, less your handicap on the hole.  If you have no handicap on the hole you have to make par to win 1/2 point.  This way all teams participate every week and it presents a fun challenge for your team.  Scoring would be attested within your team and be on an honor trust that there is no cheating.