I was going to suggest checking their page for links they usually have good info sheets which you can print out and keep handing.
Also I suggest row loading a feeding app you can use it to keep track of how often you feed, what side you fed on last (you will also do the squeeze test where you feel your own boobs to see which one feels fuller :p) and how many wet and dirty nappies your baby has. This is really handy in the beginning and the midwives will ask you these things in the hospital and after at home when they visit so it's good having it jotted down.
Buy lasnsinol or another nipple cream and breastpads
When sitting down for a fees at home get a pillow, a drink, your phone etc beside you before you start otherwise you will be sitting there stuck 
The NCT website should have a sheet in stomach size, a new born stomach is tiny so they will feed little and often.
They will also clusterfeed which is there way of telling your body to make more milk. This means some days they will want to feed what feels like non stop. This is normal and just them telling your body they are growing and need more milk. Your body will adjust and the feeding frenzy will calm down for a while. Just know this is normal.
Also feeds overnight are important as they help increase your supply and a midwife told me once this is like baby putting in their order for the next day so again it's normal for newborns to feed a lot at night.
(Just giving you ideas of things to Google and read up on)
The Breast feeding network website is also good for info and have things on what medicine you can take etc
Can I breastfeed in it UK on facebook is also a great page for finding now breastfeeding clothes (which are usually maternity) that are easy to bf in.
Buy a nursing bra before baby arrives (maybe just one or two in case you change size once your milk comes in) but having the clips is so much easier. Also sleep bras are good as you will probably need breastpads at the start. Either actual nursing ones or the crop top type soft ones you can buy in asda or Sainsbury's etc