Ever tried to find a common day and time for meetings involving more than two people? My experience with this type of problem usually involved a number of emails back-and-forth until a common time slot is agreed upon, which is a great waste of time and resources.
I've started using a web-based tool (thanks, Hari!) that makes the task much simpler: WhenIsGood.net. Simple, free, no-hassle (for starters, you don't have to create an account), and very easy to use. Check it out!