As a mum of a 6 month old here is some tips
1) Sign up for the NCT antenatal courses. Yes they are run by a "hippy" and you have to pay for them but you will gain a group of friends who are in the same situation. When I was up at 3 every morning for a couple of weeks (what actually felt like forever) it was great to be able to read and receive emails from the other girls in support. Everyone looks at those first few months with rose tinted glasses unless you are doing it. We still meet up on a weekly basis and they're such a great support network.
2) If you're planning on breast feeding get as much support from the midwives at the hospital before you leave to make sure the baby latches properly. At first you don't care how the baby has latched as you are just happy they're feeding - trust me mastitis and abscesses hurt worse that labour
3) Get this changing mat and cover
http://www.ikea.com/gb/en/catalog/products/70025318/ http://www.ikea.com/gb/en/catalog/products/90140548/
Changing mats are made of plastic which is freezing cold and your baby will hate being naked for the first couple of week/months. The cover is terry toweling so snuggly, plus when they poo all over it in the middle of the night you can just whip one cover off and change it.
4) Get up in the night, even if it's just to change the babies bum. Yes you have to work during the day but your other half never gets a break from the baby. He is never more than 5 metres away demanding time. My husband always used to get Jacob up, change his bum, pass him over to me to feed then go back to sleep.
5) Get Asda or tesco own brand nappies (we used Asda). Huggies leaked for us and pampers smelt funny. They're only going to **** and wee in them go cheap!
6) Enjoy it, take photos, talk too much about your baby and bore everyone, it goes so quickly. No matter how tired you are, the morning when they do their first excited arms and legs wiggle plus smile when you get them cot makes up for everything.