Advice to friends with GMAIL.
Go to your Settings (the little gear to the upper right) and choose LABS and pick some things. They add functionality.
I am all for the UNDO feature and the CALENDAR.
The UNDO feature gives you about six seconds to UNDO the FLAMER email you just sent.
The CALENDAR puts your gmail calendar in mini form in your left column. In the calendar, be sure to check options and have it show the monthly calendar in addition to the agenda.
Or do nothing at all.
But, you know, it is always good to be reminded in this world of endless options that some things are actually worth choosing.