Also not a multiple mom, but I agree with Simone - those cute outfits are so unpractical. Maybe get some nicer baby gro's - Woolies and Edgars have some nice ones, or else if you can splash out, Earth Child or Kidcoo (?). But really, they sleep most of the time, and the other time you are feeding or burping. DH hated it when my LG didnt have a babygo on, he said then he couldnt pat her back! And the cute dresses are too loose fitting and end up scratching their necks. Babygros are soft and easy to change. As well as snug and warm.
I had 2 "special and extra nice" outfits for coming home from hospital (which neither of my kids wore because they were so small when coming home) and then I had 2 special outfits for special days or when visiting out. " is more than enough.
Anyway, with 2 girls, Hapi, you will have so much time to dress them up! My LG, 21 months now, is on her 4th outfit for the day and playing outside in her good shoes and clothes! We've been through 6 pairs of socks today alone! (yes, 6, she refuses to put them back on if they are not washed!).
Hapi, start saving because girls are expensive!
You are gonna love your girls!