My situation is - Dd2 will be 17 months when dc3 arrives. We walk a lot for the school run, about 5 miles a day with lots of hills and kerbs to bump up and down. We also have a set of 8 stairs to get up and down outside our house. I like to be able to push one handed at times so I can hold dd1 when crossing roads etc.
And advice on side by side and tandems would be greatly appreciated! I'm leaning towards side by side but have noticed a lot of tandems being pushed (Phil and teds mainly) and wondered of I'm wrong.
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Hello!
We've noticed that this thread is quite old now, and some of the product recommendations are a little out of date. We've spent weeks speaking to parents and testing the top-performing buggies on the market to find the best double pushchairs for 2019.
Hope this helps! 
MNHQ