Here are my answers as a first timer - am happy for all you pros to laugh at me and correct my inaccuracies!
what are muslin squares for? how many do you need?
These are the little white thin material (muslin) things that I think you use over your shoulders etc just in case baby pukes! Kind of like a little protective sheet!
Have no idea how many you need, they come in packs of 5 or so I think so I will probably
is it insane to have a baby and no tumble drier?
Not if you have a garden and are able to regularly wash and dry outside - I am having re-useable nappies so tumble drier is kind of essential methinks or bubs will be naked - a lot!
how do you know when it is time to put the baby in his / her own room?
From what I can tell, there are about 1000 different opinions on this - some say straight away, some say not for at least 6 months so I intend to see how it goes, thinking I am going to try and put it in its cot during the day and then have it in with me and DH in the night time for a bit and just see what sort of routine it gets in to - short answer - just wait and see what is right!!
is it best to try and get everything sorted (bought) for the foreseeable future before the baby comes, on the grounds that less faffing about in shops after that the better, or better to just prepare for the first few weeks on the grounds that you don't really know how it will be and what you will need till you need it?
I am kind of doing a mix of things - want to have the nursery completely ready and a decent set of nappies but re clothes and everything else, just planning to see how it goes, have got a couple of bits, some bottles and steralisers ordered etc in case I have problems with BFing but think I will get most of the basics and then pick up everything else as and when I need it!
That was probably REALLY unhelpful as I have never done it before either!