Google Calendar - Click the link to open. I keep this calendar as up to date as I can with PartyLite NSW events and activities. Includes Unit Meetings, Training, Launches, Fast Track to Leadership, and a few other odds and ends.
Printable Monthly Calendars - Click the link to open. I find it easier to show guests my availabilities on the month-at-a-glance to get them to book a date. I found this site (there are others) and like the format (and the price: free). I print the next three months and always have them with me. Once the date is selected, I put address and phone details about their party in my real diary.