Re: The first "real", low-cost ISP for the UK
Same here.
I started with Demon in the early '90s, but left them in the early noughties when they refused to support any services other than under my original assigned name. No good, because I wanted to run two independent websites, and this would have required them to host a second domain name for me.
So, I moved to UKFSN with my domain names and associated redirection services hosted by my domain registrar. The two websites and mail handling were run by UKFSN until it went titsup a few years ago.
I'm now with Zen - they handle my mail service and host my websites, with the domain names and redirection service remaining where they were.