I have a 4 year old, 2 year old and 3 month old---my double is a BOB, but lately it is feeling gigantic when I am out with all three at the mall, drs office, etc. My 2 year old absolutely needs to be in a stroller at times and can't stay in a sit and stand. I am thinking something inline--phil&teds, Britax B ready with second seat, etc. WHat do you use??