Maybe this is helpful to some of you, so I thought I'd post it. As you may know, I have at all times about 4-5 active eBay accounts. This is the way I organize it:
Multiple Windows Accounts
I have one Windows user account for each eBay account, in addition to the account I work all day from, which is not used for any eBay account. The set-up for my Windows user accounts is something like this:
-> eBay account1
-> eBay account2
-> eBay account3
-> Personal Account
I only access each eBay account through its own Windows account.
Customized Firefox
For each Windows account, I have a customized Firefox browser. Under Tools > Options > Privacy, I have set it to keep cookies until I close the browser and to always clear ALL private data when I close the browser. I also have
IP Address properties of your Internet Connection 74.53.11.194 --> showmyip.com <-- set as my homepage (you'll know why in a bit, keep reading).
Dialup Accounts
Under my main Windows account, which I use all day and which has administrator privileges, I have setup a dial-up account for each of the eBay accounts. Each one is with a different ISP. They are named just like my eBay usernames, so if my eBay username is "smackingwilly", my dial-up account is named "smackingwilly". When I log into the account "smackingwilly" through its Windows account, the first thing I do is click on the dial-up connection that is named "smackingwilly".
Keeping track of IPs
Once I'm logged into the dial-up account, I click on the home page
IP Address properties of your Internet Connection 74.53.11.194 --> showmyip.com <-- and I write the IP address into a log file which I have on the desktop and which is called "smackingwilly IP Log". The file name also reminds me which account I'm logged into, so I have 3 reminders, the actual Windows account name, the dial-up name and the log file name. So once I'm connected, the entry I create in the log file is something like:
October 1st 2007 - 11:04pm - (IP here)
The next time I log on, I just append to that file. As the days go by, it may grow large, but it's worth it, trust me.
Now that I am sure that I'm logged into the correct account, which I verify by going to 'Start' and checking the account username, then double click on the bottom right on the dial-up tray icon to also verify the username and once again looking at the log file, I go onto eBay and log into the account.
Think it's a lot of work? It is in the start, but you get used to it and it really helps you from accidentally logging into the wrong account. After a few days you do it all in a few seconds.
Very Important Things
These are things I remember to do before I change from my main Windows account to my eBay accounts. Always close all your browser windows in your main Windows account. Reason? I sometimes watch my own auctions from my main Windows account and I don't want the same cookie there I've browsed with be matched to the dial-up IP of the account I log into. Windows connects all your currently logged-into accounts to the same dial-up connection, so be careful.
Also if you have Skype running, close it. Skype is an eBay company and while I don't know if they log and share IPs and account information, I don't want to risk anything.
Hope this helps