Request: Repetitive tasks

What abou tsupport for repetitive tasks?
It would be great to have daily/weekly/monthly tasks in GTG. I know that repetitive tasks belong more in a calendar than in GTG, but I think this is only true for must-do tasts. I think that not so important tasks (depending on how you see them :)) like 'joging' and 'monthly cleaning of a car' would be better off in GTG.
Implementation example:
You would add a repetitive task like a normal task but assigning it a daily/weekly/montly start date or due date. In task view you would only see the first next instance of a task and when you would do this task the next one (for next day/week/month) would appear.

What dou you think?

Keep up the great work :)
Blaž Tomažič