The first thing you have to do with SolCalendar is synchronize it to your Google Calendar account so that you don't lose the dates you already have marked. Once you've done this, you can add an event to any day by just clicking on it.
On top of being able to synch up to your Google Calendar account, you can also make your own Google Tasks account for your notes. You can take notes at any time and use them as stickers in order to be able to a quick look at them, or even set an alarm so that you won't forget about them.
With SolCalendar you can also select which calendars from your collection you want to synchronize. That way, if you're on vacation for example, you can de-synchronize your work calendar.
SolCalendar is an excellent agenda that you can use to write down reminders, events, important dates, tasks, shopping lists, or, really, anything you want.