2,101 votesShane commented
I've been a long time user of Remember the Milk Pro and this recurring task feature based on time after completion is what's stopping me from coming over to Wunderlist. The RTM way of setting this is "repeat after 1 month" or "repeat after 1 year". I have a Recurring task list in RTM that tracks all sorts of home maintenance, inspection, and checklist items. Most are based on a repeat after completion.