One of the responsibilities of a dominant is to keep his (or her) household running smoothly. There are many tricks to doing this, but I have found a nice (and free) online service called Remember the Milk. To say that it is just another online todo list would be an understatement of its capabilities. While it has the normal todo capabilities you would find in many todo lists, you can email yourself todos, subscribe to your lists via internet standards, even assign other users of the service tasks.
How I like to use it primarily is to call my girl and say to her, I need to remember this, add it to my list. She then types it up, assigns it to the date I want. The next morning it is on my iPhone when I check (ok, this part cost money, but only $25/year, a reasonable price I think. BlackBerry and Windows Mobile support available as well). I also get SMS messages reminding me of tasks, if I set it up that way and emails too. Multiple task lists, tagging and locations are also part of the basic service. And for those of you who use Google‘s services, Remember the Milk has many modules that work well with either iGoogle or Gmail.
Overall I am quite pleased with the service, and I recommend it highly. The hardest and most important part though is remembering to use it. Anything will work, but you need to use it every day.