Do you know anyone who has done this ? I am thinking of doing it but not sure..

Some of you might think i am slightly crazy for wanting to do so. heh
I am getting a honors in Computer Science and Psychology while getting a minor is mathematics. The big question is how much of a social life do you want, and if you can afford the extra time.
As to the first question, you can still have a social life, but you cannot go out and party every night. And when crunch weeks hit, it will be like a kick in the balls (the fact you are female is irrelevant to that comment

). Also, it depends upon if you like what you do. If you like what you study and enjoy doing your projects, it will become part of your social life to do such things.
As to the time, if you can spend an extra year, there is no problem. If you can't, then you have to see if you can squeeze it in. And even if you can squeeze it in, are you willing to give up the off the wall random class that you will want to take from time to time? If my school offered a forging class, I would want to take it, but chances are, I would not have been able to fit it into my schedule.
Finally, it may depend upon how your school handles honors. How much extra is involved? If there is a great deal extra, just getting honors in one field may be the more reasonable choice.
And finally (and I mean it this time), don't pay attention to those who will tell you you are wasting your time doing all that stuff. They are just jealous

.