@lindseystark This was my experience too. Going from 2 to 3 was very smooth, and I felt like I finally knew what I was doing as a parent. My older kids were 5 and 3 at the time.
@latashamay13 We have a stroller wagon, the Evenflo pivot explore. We got it when our twins were around 6 months and love it! It folds up nicely and takes up way less space than our Mockingbird double stroller did.