We have an almost 5yo boy, and another due in April...What Advice Can You Offer? ?

as far as organization, preparation, etc etc. We have an almost 5yo boy, and another due in April...What Advice Can You Offer? ?
My son was 10 years older than my daughter and before she was born I made sure to spend more time with him and explained to him that when the baby was born there would be alot of times that I would probably ask him to help me out, like getting me a diaper or a washcloth or just anything that might seem to him that I'm paying more attention to the baby than him. Or maybe he would start feeling like I was using him and start resenting having a sister, so I made sure to let him know that I needed him and I wanted to spend as much fun time in advance just the two of us before she arrived so he had some good memories to share with her someday. Kinda spoiling him a bit in advance for just in case I did need to ask for his help alot that he knew I was aware of it and appreciated it. We did so much together and I bought him a few fun things video games and things he could do and enjoy since our time was being shared with his sister. It worked out great. The funny thing I over heard him telling his sister when he was getting married and about to move out of the house he said ';Here's some advice about our Mom, she really does have eyes in the back of her head, and if you think she doesn't know what your doing , you are wrong and she also has bionic ears so be careful what you say. She turned out great and he said ';Heck it was worth it for all the toys and games you bought me.We have an almost 5yo boy, and another due in April...What Advice Can You Offer? ?
Keep big bro involved i see it happen all the time there parents are so focused on baby the bigger kids get in trouble.