After an 18 month gap I am heading back to work. Our twins have just started secondary school. During term time I'll be back when they get home, but I am not sure what to do about holidays. They're too young to spend whole days solo. We'd rather avoid the au pair route having found that a bit hit and miss. They've done sport weeks and stuff like that, but that still leaves me with Christmas and the bulk of the summer. What to do?