Purely my opinion, and I might change it as my kid grows up, but I don't think friends should be a factor at this point. Friends are easy to make, especially if you are 6; and old friends are extremely pleasant to be in touch with. I know kids that meet with friends from previous schoold several times a year and they love it at the same time never missing them.

Rather than getting dependent on certain people (friends) from this early age, focus your daughter on being able to meet new friends, have the social skills, learn to love to help people and be helped. Making new friends literally takes easy-going kids half a day, so you could prepare her for that, describe how nice it is to start things over in a new group of people (and it is nice!).

So do what you think is best and help yuor daughter enjoy it.

Purely my 2 cents, feel free to disagree :)

Great list. Keeping others away from my emotional treasury (#4) is one of my most acute goals in self-development..

Discipline and task tracking is huge. I have found that I need a physical paper and a pen to function best: I dump everything onto the paper and at the end of the day transfer anything important onto my calendar/Excel/Gmail to set further task.

Great post Jordann!
My recent post My Happiness Techniques