Monkey
double pushchair:
- if your older one likes to walk don't bother.
if they are lazy or you have to get to places on time get one.
I've had my first (Maclaren) when DS2 was born, by the time DS4 was born I had to buy another one (Mothercare)
In fact I the M'care one I bought almost 8 years ago, it's a 3-wheeler and still working well.
The smallest gap I had was 17 months, the biggest 3.5 years - but as I has to get to school on time (twice a day!) I normally used it until the older child was almost 4 or too heavy.
hth