I see you have already created a topic regarding wapplers state management:
The way I see it, sessions would be the way to go. Session, unlike cookies do not store data on the device locally and they enable a webapplication to store and share variables across multiple pages.
I have to be honest, I have not used the session manager of appconnect yet. But I coded websites which used sessions before and it worked great.
It is really late in my time zone and I need to get some sleep but tomorrow I can check it out for you how this could be achieved by using the session manager.
Nice website by the way :)