Calendar...
The Calendar isn't just a date-book, it's your "everything book". You can put in events and schedule appointments, but it's much more than that. When you sell a product to a customer, you will be asked if you would like to follow up. If you say yes, then your follow-ups will show on the calendar in 2 days, two weeks and two months (or different times if you choose). The same is true with your customer birthdays; they will show up and remind you to give your customer a call. These two simple features will help provide better service to your customers, and in turn, help you make sales that might have been overlooked.