The part about the app caught my attention--what app had you been using to keep on top of housework? I have tried using ToDoList to remind me to do things that need to be done occasionally, but what tends to happen is that I don't do them on the day that they come do, and then each day I need to reschedule everything "overdue" to "today", and the list just gets longer and longer, and I am still not doing it, but now, instead of being nicely spread across the calendar, all of the "do it every six weeks", "do it twice a year", "do it once a month" are now all supposed to be done today...

I would love a robot vacuum cleaner...