[Sam Livingston-Gray]

I'm about to try using OmniFocus for this, following the model in "How to create a checklist for Daily Routines." (I'd link to the thread, but apparently can't include URLs in my first post.)

To date, however, I've been using ListWrangler, which does a decent job of creating lists from list templates, with auto-creation based on day of the week (so I can have a different list for the 4 days/week when my daughter goes to daycare, and a shorter list for the 1 day/week when she stays home with mama). It only auto-creates lists on days when you actually launch the app, so you don't get multiple copies of lists or items when you've been away on vacation or something.

Unfortunately, it can't compose templates, so I do have to duplicate the items that I have to do all 5 days of the week.

Still, for situations where OmniFocus is overkill, it's a decent little app.