New nursery

Back to work yesterday after a week off with the kids. I had to 'settle' son 3 at his new nursery over the week which was strange and as with the other 2 boys felt slightly wrong leaving him. The staff must have thought I was the stupidest mummy as I didn't leave enough nappies etc, right clothes etc. Its just getting back in the habit of being organised, I've been so used to having a nanny who was often left with no food, not enough clean nappies (I use re-usable nappies), moody kids etc that I am not used to being super organised. Help, how do I become super mum?? On another note, my 2 older boys are driving me mad, one is moody and naughty (he kicked one of his shoes off into a lake at Chiswick House my friend nearly split herself in half on a fence rescuing it) and the other is going through the biggest growth spurt with huge amounts of growth hormones making him have toddler tantrums (he's nearly 7!). I also realised I'm not cured of my ditiziness, my friend in Singapore who recently had her 3 child got sent a lovely card from me without anything written inside. Well I'm sure the mystery kept her guessing for days.