I like the concept of a HH Account because it means that you can share Avios balances, due to the 100,000 signup bonuses we have about 300,000 Avios, 180K in my account and 120K in her account, By combining these into one future bookings would be prorated, and if we needed to dip into one another’s balances it would work automatically, for example if we wanted to book a ticket that cost 150,000 Avios for the wife it would pull 90K from my balance and 60K from her balance.