I've been reading through this and worked out what my problem is with these kinds of threads. Well, not a 'problem', really, because there's always loads of good advice on here and it is all very well meant, but...
Advice about things is great. Signing up for Netflix, vests rolling downwards, keeping your changing bag fully stocked, having a freezer full of food you can reheat and eat one-handed - all fantastic advice and really practical.
Advice about a baby is sadly pretty useless. Like I said, it's all very well meant but every baby - and mum - is an individual and it will be different every time. Don't leave the house for 6 weeks, don't put your baby down, start a routine at 3wo - all pretty useless until the baby is here.
Having said that, I think the best thing any first time mum can do is read posts by 100 different mums saying what their first few months were like. That's better than any advice about what babies do or don't like. It shows how individual they are, that some are velcro babies, some like to sleep alone in a cot, some cluster feed, some actually like baths... It shows that whatever a mum thinks or feels or wants to do, it's all fine.