How do I edit my profile?
Once logged in, you can edit your profile by opening your account’s dropdown menu at the top left corner of the screen. You will access your profile info by clicking the “Edit Profile” option. Alternatively, if you’re on your profile page, you can click the “Edit Profile” button above your About Me section.
How do I change the email address associated with my onSugar account?
You can change your email address on the Edit Profile page. Once there, click the “Account” tab at the top of the page. This will take you to a page where you change your email and password. Be sure to click “Save” when your changes are in place.
How do I change my user icon?
When you’re on your Edit Profile page, you can add or change your user icon by uploading a picture from your computer. Search for a picture on your hard drive by clicking the “Browse…” button. Locate the image you want to use, and once it is uploaded be sure to hit the “Save” button at the bottom of the Edit Profile page.
How do I change my password?
To change your password, access your Edit Profile page. Once there click the “Account” tab at the top of the page. This will take you to a page where you change your email and password. Be sure to click “Save” when your changes are in place.
How do I cancel my account?
If you’d like to cancel your account, please contact us at help@onsugar.com.
Will I lose all of my content if I cancel?
Canceling your account will delete all of your content and onsugar.com URLs. You will not be able to access any of your account information. Doing so will also cancel your TeamSugar and ShopStyle accounts.
How do I change my username?
To change your username, please contact us at help@onsugar.com.
How do I change my email notifications?
To learn more, please see our post on notifications.

I'd like to suggest that you have a "screen name" that can be associated with the profile, in addition to the username.
When people come to my blog, I want them to easily identify me, but sometimes (especially as onsugar gets bigger) the usernames will become less user friendly.