off into central london tomorrow dd is 3 and ds is 16 months so need to take something (he refuses to sleep in a carrier) - he sleeps best in a reclined bucket seat,, but will sleep if shattered in the phil and teds, but not for as long - have a zapp xtra and a vigour, could take phil & teds so dd has somewhere to go but usually she is ok to walk/go on DHs shoulders, but thinking these options are going to be a nightmare on tube (no lifts at stations we need as checked) - so we have the last option which is a cheapy reclining umbrella fold - used briefly for DD - have got it out and DS is ok in it - although rather slumped etc - planning time in hyde park etc for him to run about etc - i know it will be much easier to fold and carry him etc on the tubes - is this the right thing to take??