how do you do it?!

[keladry_lupin]

How do you all maintain such busy lives? I'm a couple weeks into a new schedule and some additional activities, and I'm going cuckoo. How do I fit all the following into my schedule?

40 hour a week job (plus 1 hour a day minimum for the commute)
belly dancing (class weekly, practice daily)
training for a 10K walk
writing 500+ words a day
keeping the flat from turning into a pigsty
errands: shopping, dry cleaning, etc.
choir practice (weekly)
sleep

I don't have a husband or kids to herd, either; I don't know how you all manage.