David Karp’s Favorite Tech Tools  4 of 7  To-Do List App
TeuxDeux  "I use a program called TeuxDeux, which is a very
simple like, 'Today I'm doing this, tomorrow I'm doing this, the
day after I'm doing this.' It's just straight up lists that are
sent to my iPhone. I actually use that instead of a calendar,
because I hate calendars." COST: Free