One of the more annoying features of Netsuite is the inability to get rid of their name & branding from a Netsuite-hosted e-commerce web site. The shortcut icon (that little graphic that shows up next to the site title when you create a bookmark)
Shortcut Icon
defaults to a Netsuite 'N' graphic. I'll show you how to overwrite that with a custom icon. You will first need a 16x16 pixel graphic named favicon.ico. If you don't know how to make one, here is a tutorial.

Two Ways to Skin a Cat

I'm not really sure why it's important that there are so many options in the feline-skinning world, but I guess it's nice to know. To create your custom icon, I recommend both (if possible).
By default, browsers will look for the shortcut icon in the root of a web site. So for my site, the favicon would be located here:
https://www.fourthwc.com/favicon.ico

If you have Netsuite 11, you can upload this image to the root of your file cabinet under web site hosting files > live. If not, just put it under web site hosting files > live > site.

Specifying the Favicon in a Meta Tag

If you uploaded your favicon to the root of your web site, it should show up most of the time. However, sometimes the user is on a Netsuite domain. Here is how to make sure your icon is always displayed. In the 'additions to head' field under setup web site > site templates, add the following line:

<LINK rel="shortcut icon" href="https://checkout.netsuite.com/c.411534/favicon.ico" type="image/x-icon">

Note: Make sure to get the correct URL by editing the file in the file cabinet - NetSuite will show you various forms that the file's URL can take. It's best to use the secure version as I have, so users won't see a warning about insecure content when on secure pages.
That's it! Pretty easy to do, and a nice touch to have (and less confusion for your users).