My twins are creative. Carly tells Laim "Lay down" and then she stands on him and climbs over the gate then pulls him over it. She devised this method at about 18 months old. LOL
A note about strollers... I also had a Graco Duo and liked it a lot. I have had a lot of moms tell me they do not like the side-by-side strollers because they are too wide to fit thru doorways, etc. I had the tandem and never tried a side-by-side myself but that is what I have been told. Just FYI. And I would definitely NOT go out and buy one of those expensive puppies new! Look for a used one. I got mine for $25.