It's all an adjustment. The first two weeks were spent figuring things out (like... how does one actually ever go shopping with three small children??) Takes us a bit longer to get out of the house, get in and out of the car, etc etc. Laundry is never ending and we go through so. many. diapers. But we're figuring it all out! Around 2.5 weeks though Cole got a lot more difficult, just very unsettled, and wanting to be held all the time. This definitely made things more challenging, and we are still figuring it all out. But we'll get into a new groove eventually!
I must say though... having two mornings a week when the big kids are in preschool is amaaaaaazing. I have just me and a baby. We can do whatever we want. Or run errands. Or nap. The other day, I watched The Price is Right, just because I didn't know what else to do (that could be done easily while holding a baby). I love these big kids to pieces, but a little "baby only" time is nice too. :)