Semi-related, I want a feature for driving directions where I can specify that I'm familiar with either the origin or destination. If I print out directions, half the page is taken up with turn-by-turn instructions on how to get from my house to the nearest interstate highway. These should go away and be replaced with a simple "goal" instruction ("Get on I-71 North").
Bing already has a solution for that already, which they call one-click directions. If you search for a place, there's usually a set of options such as "from I-5 South," "from I-5 North," "from 450 West" which give directions starting from those respective highways. I'm a big fan.