"As far as corners, we love that game too. To play up to a thousand, you just keep the score going. For example, you play day one, and say you end at 155 points. Tomorrow you start a new game and start with the points 155. Then start the next game with the points you ended with the last time, until you come to 1000."

Ahhhh okay. For us it wasn't a matter of taking up too much time -- just that the game would end because no more moves were possible. But I like that idea of adding games together for a mega-score. :)