of you are going to suffer from long waiting times and flaky internet
connectivity or none at all while traveling back home. How about
downloading some of the video talks while you are here to watch them
offline? Do it now so you wont forget later!! 
Thanks to the video team, this is feasible very early this year!
a particular video that you enjoy, you might consider subtitling it
afterwards or while you watch it. Subtitling basically includes
transcribing what you hear to a text file, which can be then sync with
the video afterwards.
There are many videos and few people doing subtiling, so it is unlikely to step over the work of somebody else, but if you consider doing some subtitling work, read our quickie debconf 2016 
Give us a holler in IRC  to check first if you dont want to risk it or head to our wiki  for tricks around offline subtitling or to get a lock on a particular file if you really want to make sure nobody is already working on that.
Thanks and enjoy the rest of debconf 2016!