admylin I never used to be able to get hairdressers to cut my hair as short as I wanted when it was curly, but they're OK about it now. Mind you, one hairdresser recently said she wouldn't cut it any shorter as it would look like a balloon otherwise.

Yes, DH is very hands-on; I'm more of the benign neglect school.
As he's not around much during the week, I don't feel too guilty about letting him be the DC's main entertainer at the weekends. They do go off and play by themselves too, so DH and I sometimes even get the chance to talk without interruptions. 
cheas I read all the time when we were on holiday in the summer, but it was only the second year I was able to do so. I also find it much easier if there are other children around; at the moment, I feel like I spend 90% of the afternoons stopping the DC from trying to kill each other.
It's also only recently that DS has started to go off and play by himself (the DDs did so a little earlier IIRC).
Another book I found useful was Baby Talk by Sally Ward. A lot of it is common sense so I suspect that the David Crystal book is more in-depth (haven't read that particular one, but always find his writing very interesting and accessible, without being - as cheas said - dumbed down), but I did find some helpful ideas in it. The title is a bit misleading though, as it also covers toddlers and preschoolers.