I absolutely cannot juggle things! I used to lecture part time, but I found doing it really ate into my time, and so I hardly ever had time for my PhD work. I did that for two years, but then thought that I'd rather not earn any money now but have a PhD, than earn some money now and not have a PhD. It didn't help that I was coming down with a chronic illness at the time (that I didn't realise).
Now that I've only got 7 months till deadline (eeeek!) I've pretty much dropped out of socialising, and handed all the house work to my OH (who is a god send!).
Although I have to add, I have several learning difficulties and a mental illness, so getting this thesis done probably takes a lot more effort from me than it would for others.
I'm envious that you can juggle so much, what's your secret? :D