Learn sign language
I think newly-weds get a lot of bad advice from lifestyle gurus and other quacks about money, sex, romance and all that other stuff. Ignore it all. There’s really only one thing you need to know as a newly-wed: learn sign language.
The moment the honeymoon’s ended sign up for the nearest accredited sign language course and get those fingers talking.
Why?
Because signing allows to have a full-blown argument in front of the children without them understanding quite how pissed off you are with each other and saves from any psychological scarring. In turn this will save you from having to pay exorbitant fees to child psycho-analysts and therapists.