baby clothes

Okay I already have a toddler but can't remember that far back when I was pregnant with her😂 most people tend to go overboard with their first born and half of it doesn't get used! 
How many of each size sleepsuit/vests?
Starting at tiny baby 5lbs 
                  New baby 7.5 lbs
                  Up to one month 10lbs 
Just asking these sixes to start off I'm an organised person but don't want to buy things that aren't gonna be worn lol