I'm expecting baby no 2 in January, when DS will be 3 years and 4 months. We do some long walks with the dog, I'm trying to wean him off taking the pushchair with us at the moment, but I think we will still want a buggy board for longer walks. I currently have a Britax B Mobile, used when DS was tiny (with the carry cot attachment) or for quick trips around town, and also a Phil & Teds Sport, which we bought 2nd hand when he was about a year old and has been brilliant, but I wouldn't use for a newborn as it doesn't parent-face. (We also don't have the seat to turn into into a tandem, the newborn cocoon etc as it was a 2nd hand bargain).
Is there such a thing as a buggy board that would fit both pushchairs, or is that hoping for too much? Is there such a thing as a universal one, or are they all different?