You're not alone in wanting to leverage the power of an issue tracker for more mundane tasks (Eventum, in my case: https://launchpad.net/eventum). Efficient as they may be, even I was reluctant to allow family members to create tickets for me. But the main reason I haven't done it is that taking a break from work shouldn't mean spending more time at the computer. It would be handy for tracking major projects, though, especially since it helps to organize contact information in a meaningful context.