What I like to use RTM for is having a recurring task every 6 months to remind me of renewal of my passport or other official documents. When the reminder pops up, I take a look at the expiration dates of my documents and set a task due at a date which is early enough to get a new document from the administration office before the previous one expires. That way my passport won't be expired when I should need it.
This works also fine with vaccinations to make a doctor's appointment in time for e.g. the next tetanus shot.
Posted at 8:25am on June 26, 2012