A woman I know had a practical "today" application for the Martha/Mary discussion. She helps a lot in the kitchen at our church, and she said (NOT naming names) that there are some women she will not ask to help, and if they are signed up to help, she makes sure to line up additional help to cover for them. Because when they are supposed to be helping in the kitchen, they end up spending the time talking, then apologizing because they "just wanted to check on so and so" or "say hi to so and so that was visiting". She equated this to Mary - seeking the spiritual, and a GOOD thing. But the reality is, someone needs to do the work, and when you are signed up to be the Martha that week, you need to let someone else be the Mary.
I thought that was good. :-)
Another online friend mentioned that she sees the story as a heart issue only - that Martha should have been happy to do her work, not focussed on what others were not doing. "Do everything as unto the Lord".