DS1 will be almost 4 when DS2 is born so I'm thinking about the sit and stand stroller, but I'm not sure it's worth it moving on from the single stroller we have. Right now DS1 still likes riding in his stroller when we're shopping at the mall, but wonder if I could get away with having the baby in an ergo carrier and him in a stroller (if he's still a fan).
Thoughts from moms who already have 2? What's everyone else doing?