Great advice there - I am a 3 1/2 week in new dad.
Clean the house, get some food in, get organised, do the washing, do nappies, do washing, make cups of tea and do a bit of baking, buffer visitors and don't be afraid to say no when people want to come round at all hours to poke the baby awake, be very very nice to your other half - they focus on the baby - your job for 6months is to focus on making her feel loved. You might feel a bit left out but it is only temporary. Make sure you get some time for yourself as well.
To be fair we have had a very easy run with a well feeding, happy and sleeping baby (10hr stretch last night - wtf !). Mum is rested and relaxed and was completely mobile 2 weeks after a c-section - driving etc no issues. Expect periodic meltdowns of tears and be sympathetic - even if it is you !
And congratulations, great feeling.