In our iLounge Deal for today, you can get BusyCal 3 for only $19.99 — that’s 60% off the regular price. This award-winning Mac app will supercharge your calendar, with full customization and integrated task management, plus compatibility with not only iCloud but all of the other leading cloud services from Google to Exchange. Customizable day, week, month, year, and list views let you view your events just the way you want, keeping you focused…