For dc3 i purchased a maxi cosi car seat and mamas and papas pliko with carry cot as i much prefer him to be layed flat so wasnt bothered about the travel system option. He is now 5 months old and is a terrible napper therefor if he falls asleep in his seat and i am just nipping into one shop/to the bank or its the school run i will now often carry his car seat rather then getting his pram out. He is getting too heavy for this so think i need a lightweight small buggy that i can pop his seat on what have people found best for this? Ideally i need something small too so i can fit it in the boot with the pram so if he is awake i can use the pram.