Remove Plusnet username from plusnet email address

[#1]

Can I remove or replace my username from my plusnet email address?. Alternately, can I change my plusnet user name?.

[#2]

Unfortunately no to both questions
Why not set up a gmail address

[#3]

Already got gmail, yahoo and aol addresses. I let firefox save the passwords so I believe I would need to keep logging in and out if I had multiples with gmail etc.

[#4]

Not necessarily - it depends on how you are accessing your emails
For example I am using Outlook (the one which came with Microsoft Office) and I have multiple email addresses and they all receive automatically and I have set up rules to put each of them in separate folders
Then when I reply to or create a new email I just select which account to use
I think Thunderbird probably has similar features
If you are using webmail for all of them you are probably correct

[#5]

Buy your own domain name
EDIT - bumbershoot.org.uk is cheap!