I love, love, love the Peg Perego Pliko P3!  I purchased this when my 3rd child was born, and it has been a life saver.  My younger 2 children are 20 months apart, and it was a great alternative to the side-by-side double stroller on the days when it was just me and the baby.  My middle child loves the step on the back of the stroller, and with the stroller light but very durable, we were able to navigate the mall and Disney and all sorts of other places quite easily.  When my middle child became more independent, the stroller was still a great fit for my youngest, and though he hates to be...