Just a question about this...
If I travel on the DLR to Heron Quays and get on the Jubilee there, do
I have to touch out at Heron Quays?
Can touching out unnecessarily ever actually cost me out?

And how do I register so I can see my journeys online and check these
things? I already set my account to auto-top-up, but it still doesn't
seem to show me my journey history.