Heres an idea for a novel bitcoin service.
You prepay coins to an online wallet and create receiving addresses in your bitcoin client with an appropriate label and add it to the online service.
("pms" for example.Once a month you would receive a payment to that address which shows up in your client and reminds you that its time to buy chocolates and flowers or hide in the garage-call it second wife
You could do this for anything by labelling the address with a reminder notice for example "Doctors appointment @ 10am"
If you make it I want a cut lol.