more on the calendar

I am frustrated.  I want to be able to add "notes" to the calendar.  This would be used to add information that spans a period of time but doesnt need to be added to specific dates - such as the JHMR local ski program, gymnastics sign up, etc.  The notes would allow me to put this important information into the calendar without filling up valuable space in the daily boxes.  Anyone familar with Google Calendar and have an solution or idea for me?