I just bought a wagon that fits 2. Preschoolers walk next to it, toddlers go in it. If I have 3 that aren't walking well, I wear the youngest (woven wrap for a long walk, SSC with buckles-Chimparoo Trek-if they'll be getting down to explore). I won't babywear around the house (except itty babies) but I have no problem doing it for walks, saves me buying more equipment that I'd only need a short while.