How do I specify a date range in the repeat box?
I want to do a task every day next week but not after. How do I specify a task to happen repeatedly between two dates?
Unfortunately, it's not possible to set an ending date to a task now, but we will consider adding such option in the future and you're welcome to vote for it in our Votebox: http://todoist.com/Vote/showProposal/214/
For now, you could simply either type a date within the task's name to know when it should stop occurring or, once the last occurrence is complete, hold the SHIFT key to force-move it to history or right-click on the task and choose "Move to history" from the context menu.