Is there a way to roll over a task to tomorrow with a click rather than by changing the date?
If that task has a date as "every weekday" and you hit the Postpone button, it will move to the next day.
If that is not the case, then unfortunately, the only way to accomplish this right now would be to change the date. We are looking to implement a "do it tomorrow" feature in the future.
Feel free to vote on it :) http://todoist.com/Vote/showProposal/826/