I would suggest following input to begin with:
http://www.becomingminimalist.com/most-popular-posts/
Another suggestion: read ONE post per week. And apply after reading.
http://www.becomingminimalist.com/the-10-most-important-things-to-simplify-in-your-life/
http://www.becomingminimalist.com/35-gifts-your-children-will-never-forget/
http://www.becomingminimalist.com/15-clutter-busting-routines-for-any-family/
http://www.becomingminimalist.com/a-practical-guide-to-owning-fewer-clothes/
http://www.becomingminimalist.com/creative-ways-to-declutter/
http://www.becomingminimalist.com/un-busy/
http://www.becomingminimalist.com/7-common-problems-solved-by-owning-less/
http://www.becomingminimalist.com/why-fewer-toys-will-actually-benefit-your-kids/
http://www.becomingminimalist.com/escaping-excessive-consumerism/
http://www.becomingminimalist.com/dont-just-declutter-de-own/
As I am getting older I own less, but better.
Why wouldn’t you from now on give experiences and not stuff to each other? Travel, nice dinner together, spa day for two, staying in bed whole day, concert, movie night out etc.
I also own less and less clothes, but wear all of them. Full wardrobe would cause an panic attac. I love the half full version and the fact that I love everything what is in it. And everything fits.
♥Declutter your home, your mind and your life.♥
Here some motivation!