I've been umm-ing and ahh-ing over whether we're going to need a double pram, or a toddler seat attachment. DS will be 3.5 when #2 arrives, so we're thinking no. DS does love to hold the strap on the pram and walk, but he also runs away - which is really annoying. DH is adamant we're not getting one of those backpack harness things. However, the *idea* is to have baby in a sling and DS in the pram... If he wants to walk, baby can go in the pram, if he wants to ride in the pram, baby can go back in the carrier.