Good post Nasher!
I'm always scared that I'll forget!!
Did it last week, then went to the Harbour to split the  tickets up,
 then back home & online to adjust return times etc, we have to do this every year!

A few years ago, we went down on the bikes early (as you do!) with the plan of the girls coming down later, at foot passenger time, in a taxi (saves squeezing us all onto the bike with the luggage!) 
but because we hadn't split the tickets up,(we'd just printed 2 copies of each), we had to pull the bikes out of the queue & wait for the girls to turn up & then all go in together! 
what a palaver!