The main clothes I'd say babygros bibs and vest I always get 14 then I have enough for an average of 2 changes a day. If it's winter when baby is due a couple of cardigans. Also a coat for when you go out.
You'll need a car seat to come home with but if you don't have a car you can borrow one and some hospitals rent them to you its worth asking.
Somewhere for baby to sleep I normally have a moses basket to begin with and move on to a cot.
Muslin squares I find is a must they can be used for a lot of things from cleaning sick and poo when it's hot sunny weather I drape it over the pram hood to help sheila from the sun.
Blankets you can get fitted ones for moses basket mattresses but I just use pillowcases I have in the house then a mixture of cotton and fleece blankets.
Nappies a good stock of which ever type you have chosen to use. Plenty of cotton wool for cleaning baby's bottom and for when you top and tail.
A changing bag to carry whatever bits you need although I just choose a large normal bag and get a baby magazine when the free gift is a travel changing mat.
If you ff then you'll need bottles teats and a steriliser if you bf I'd suggest some nipple sheilas just incase I had problems and got really sore blistered nipples when I tried bf and I went to bottle because of it looking back if I had nipple sheilas for a little while I could have probably carried on.
Something to help you get out and about either a buggy or a sling. With dc2 I couldn't find a pram I liked and when I did the delivery date was after my due date so he spent a couple of weeks being in a sling.
I can't think of any other things at the moment good luck 