Heh when I first decided I was going to try competing this year, I put some money behind a commitment to a friend to practice every day before the competition. I also put money behind various habits I was trying to build, from daily walks to going to bed before 2am. As it turns out, I didn't need the financial motivation to practice every day. Getting out of the apartment or in bed at a reasonable hour, on the other hand... (RIP my wallet)
But I'm happy to officially join the PACT as well if it helps give anyone else encouragement! I'll pledge to practice daily with exceptions for injury and travel (although I do usually try pretty hard to find rental practice rooms and am anxiously awaiting for my Piano de Voyage to bring on future trips).